D20

D20

1

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。
2

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。
3

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。