annotate 2014/April_08th.html @ 32:1b92285a767a

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author Masataka Kohagura <kohagura@cr.ie.u-ryukyu.ac.jp>
date Tue, 04 Aug 2015 19:45:57 +0900
parents ff03dd29fd52
children
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1 <!DOCTYPE html>
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2 <html>
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3 <head>
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4 <meta http-equiv="content-type" content="text/html;charset=utf-8">
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5 <title>8th,April,2014</title>
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6
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7 <!--
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8 Notes on CSS media types used:
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9
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10 1) projection -> slideshow mode (display one slide at-a-time; hide all others)
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11 2) screen -> outline mode (display all slides-at-once on screen)
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12 3) print -> print (and print preview)
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13
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14 Note: toggle between projection/screen (that is, slideshow/outline) mode using t-key
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15
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16 Questions, comments?
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17 - send them along to the mailinglist/forum online @ http://groups.google.com/group/webslideshow
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18 -->
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19
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20 <!-- styles -->
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21 <style media="screen,projection">
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22
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23 html,
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24 body,
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25 .presentation { margin: 0; padding: 0; }
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26
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27 .slide { display: none;
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28 position: absolute;
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29 top: 0; left: 0;
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30 margin: 0;
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31 border: none;
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32 padding: 2% 4% 0% 4%; /* css note: order is => top right bottom left */
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33 -moz-box-sizing: border-box;
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34 -webkit-box-sizing: border-box;
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35 box-sizing: border-box;
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36 width: 100%; height: 100%; /* css note: lets use border-box; no need to add padding+border to get to 100% */
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37 overflow-x: hidden; overflow-y: auto;
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38 z-index: 2;
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39 }
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40
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41 .slide.current { display: block; } /* only display current slide in projection mode */
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42
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43 .slide .stepcurrent { color: black; }
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44 .slide .step { color: silver; } /* or hide next steps e.g. .step { visibility: hidden; } */
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45
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46 .slide {
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47 /*
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48 background-image: -webkit-linear-gradient(top, blue, aqua, blue, aqua);
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49 background-image: -moz-linear-gradient(top, blue, aqua, blue, aqua);
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50 */
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51 }
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52 </style>
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53
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54 <style media="screen">
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55 .slide { border-top: 1px solid #888; }
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56 .slide:first-child { border: none; }
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57 </style>
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58
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59 <style media="print">
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60 .slide { page-break-inside: avoid; }
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61 .slide h1 { page-break-after: avoid; }
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62 .slide ul { page-break-inside: avoid; }
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63 </style>
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64
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65
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66 <!-- add js lib (jquery) -->
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67 <script src="js/jquery-1.7.min.js"></script>
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68
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69 <!-- S6 JS -->
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70 <script src="js/jquery.slideshow.js"></script>
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71 <script src="js/jquery.slideshow.counter.js"></script>
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72 <script src="js/jquery.slideshow.controls.js"></script>
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73 <script>
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74 $(document).ready( function() {
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75 Slideshow.init();
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76
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77 // Example 2: Start Off in Outline Mode
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78 // Slideshow.init( { mode: 'outline' } );
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79
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80 // Example 3: Use Custom Transition
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81 // Slideshow.transition = transitionScrollUp;
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82 // Slideshow.init();
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83
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84 // Example 4: Start Off in Autoplay Mode with Custom Transition
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85 // Slideshow.transition = transitionScrollUp;
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86 // Slideshow.init( { mode: 'autoplay' } );
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87 } );
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88 </script>
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89
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90 </head>
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91 <body>
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92
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93
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94 <div class="presentation">
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95
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96 <!-- add slides here; example -->
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97 <div id="header">
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98 <h1>Cerium による並列処理向け I/O の設計と実装</h1>
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99 </div>
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100
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101 <div class='cover'>
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102 <h1>今週までの活動</h1>
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103 <ul>
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104 <li>目次の作成</li>
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105 <li>word count にて、mmap vs blocked read</li>
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106 </ul>
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107
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108 <h1>事務連絡</h1>
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109 <ul>
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110 <li>名刺を illustrator にて作成・注文</li>
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111 <li>
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112 並列信頼研ロゴステッカーは、業者注文再開<br>
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113 (そろそろ発注するんで、そのときはカンパよろしくおなしゃす)
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114 </li>
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115 </ul>
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116 </div>
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117
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118
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119 <div id="cover">
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120 <h1>研究目的</h1>
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121 <p>
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122 当研究室ではマルチコアの性能を充分に引き出すために、 Cerium Library の開発を行い、提供することによって並列プログラミングを容易にしている。
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123 </p>
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124 <p>
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125 先行研究ではファイル読み込みを mmap で実装していたが、mmap した領域に対して何らかの処理が行われたときに初めてファイルが読み込まれる。
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126 </p>
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127 <p>
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128 本研究ではファイル読み込みと、処理の分離化の設計、実装によってプログラム全体の処理速度、処理効率を上げていく。
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129 </p>
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130 </div>
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131
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132 <div id="cover">
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133 <h1>目次</h1>
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134 Title : Cerium による並列処理向け I/O の設計と実装<br>
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135 <br>
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136 第1章 研究背景と目的<br>
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137 <br>
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138 第2章 Cerium Task Manager<br>
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139 <br>
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140 第3章 Cerium Task Manager を使った例題<br>
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141 ・3.1 File Read<br>
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142 ・3.2 Word Count<br>
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143 <br>
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144 第4章 並列処理向け I/O の設計と実装<br>
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145 ・4.1 mmapでの実装<br>
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146 ・4.2 Blocked Read の設計と実装<br>
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147 ・4.3 I/O 専用 thread の実装<br>
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148 <br>
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149 第5章 ベンチマーク<br>
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150 <br>
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151 第6章 結論
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152 </div>
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153
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154 <div class='cover'>
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155 <h1>word count で mmap vs Blocked Read</h1>
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156 <p>
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157 firefly 上で実行<br>
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158 2*2.66 GHz, HHD 1TB, memory 16GB<br>
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159 file size : 1GB<br>
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160 cpu num : 12
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161 </p>
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162
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163 <table>
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164 <tr>
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165 <table>
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166 <tr><td>mode</td><td>time(s)</td></tr>
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167 <tr><td>cpu & mmap</td><td>22.98</td></tr>
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168 <tr><td>cpu & blocked read</td><td>13.14</td></tr>
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169 <tr><td>gpu & mmap</td><td>101.40</td></tr>
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170 <tr><td>gpu & blocked read</td><td>90.63</td></tr>
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171 </table>
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172 <tr>
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173 </table>
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174 <ul>
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175 <li>cpu使用時、blocked read が mmap よりも 1.74 倍ほど速くなった</li>
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176 <li>gpu使用時は 1.12 倍ほど速くなった</li>
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177 </ul>
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178 </div>
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179
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180 <div>
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181 <h1>名刺作成と注文</h1>
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182 <p>希望者全員の分の名刺の作成と注文を行った</p>
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183 <p>希望者全員には配布済み</p>
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184 </div>
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185
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186 <div id="footer">
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187 <h1>並列信頼研ロゴステッカーについて</h1>
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188 <p>価格が微妙に変わっている??大きいステッカーと小さいステッカー2種つくるので、15000円前後になると予想</p>
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189 </div>
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190
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191 </div> <!-- presentation -->
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192 </body>
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193 </html>