D20
D20
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The paper also gives the relation between the equivalent diameter D20 of filter and the dispersive degree D of soil based on the analysis of the testing results .
文中根据试验结果给出了反滤层的等效粒径D(20)与土的分散度D之间的关系。
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LCI D20 human liver cancer metastasis model , after hepatectomy , was used to observe the effect of RSM on recurrence and metastasis of liver carcinoma in nude mice .
以LCID20裸鼠人肝癌转移模型为材料,观察丹参对早期和晚期肝癌切除术后转移复发的影响。
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The S20 and D20 are set to launch in Q1 of2010 at a price of $ 1,070 and $ 1,550 respectively .
S20与D20系列将在2010年发布,售价分别为1070美元和1550美元。