您要查找的是不是：
- initial retention time 初期保留时间, 初始保留时间
- Is there such a term as absolute retention time? 绝对保留时间定性?
- Retention time of ACV was about 7.Smin. 分另为ACV组的5.;7倍，1
- The retention time must match that of an external standard within 5%. 保留时间必须在外加标准品保留时间的正负5%25以内。
- Poor injection technique is also iden tified as a cause of retention time variability. 进样技术的问题也会影响保留时间的变化，通常这个问题更多的出现在手工进样中。
- The RetainDeletedItemsFor parameter specifies the retention time for deleted items. RetainDeletedItemsFor参数指定已删除邮件的保留时间。
- Maximum retention time (days) Specifies how long an e-mail message should remain in the transport dumpster queue. 最长保留时间(天)指定电子邮件可在传输垃圾站队列中保留的时间。
- By default, the maximum number of search folders is 11, and the maximum retention time is 8 days. 默认情况下,搜索文件夹的最大数目为11,最长保留时间为8天。
- Their retention times shall be established and recorded. 应规定其保存期限并予记录。
- The holding tube is designed to establish a retention time for the product at the pasteurization temperature. 我们设计保温管来确保产品在巴氏杀菌温度时的保留时间。
- Stone clear rate was 100%. Av- erage retention time of nephrostomy tube was 4 days,and average hospital stay was 6 d. 一期结石清除率100%25,肾造瘘管留置时间平均4 d,平均住院时间6 d。
- One cause of retention time uncertainty identified is poor oven temperature repeatability. 一个引起保留时间不确定度大的因素是差的柱温箱温度重复性。
- The recombinant sCT-Gly had almost the same HPLC retention time as the standard sCT obtained from Sigma. 以上结果提示，鲑鱼降钙素在链霉菌中获得了成功的分泌表达。
- Identification of retention time can be accurately obtained using a pentane peak as a standard. 可以用戊烷峰来计算其它峰的保留时间。
- It concludes that low organic loading and enough hydraulic retention time(HRT) are the keys to the the start-up of ABR. 结果表明，保持较低有机负荷以及足够的水力停留时间(HRT)是反应器成功启动的关键。
- Increase in intensity,retention time and the pulse frequency could enhance the efficiency. 增加磁场强度、处理时间和脉冲频率可以提高杀菌效果.
- Research on the effects of different gut retention time on seed germination has been scanty. 至于不同的消化时间对种子活存与萌发的影响，则极为有限。
- The retention time of a peak in the HPLC of the sample corresponded to that of ferulic acid. 高效液相色谱表明样品在与阿魏酸相同保留时间处有吸收峰。
- The bottom of the reservoir shall be designed to provide adequate retention time of the heat transfer fluid to ensure positive heat transfer. 流体贮存器必须为热传导流体提供适当的停留时间,以保证能够进行充分的热交换。
- It was believed that the primary reason of the second propagation of Cyclops was the low filtering velocity and the long retention time in the filters. 指出滤池滞水区停留时间长、流速低是造成剑水蚤二次繁殖的主要原因。
