Effects of derivation time, extraction time and amount of derivation agent on the recovery were discussed.

对样品的衍生化反应时间、萃取时间和衍生化试剂用量对回收率的影响进行了详细的讨论。

youdao

By the derivation, calculation and illustration it is testified that the that of stroke, transmission efficiency, linearity and life time meet the design requirements.

通过推导计算与实例证明，该驴头的行程、传动效率、线性度和寿命都满足设计要求。

youdao

Theoretical derivation indicates that time averaged three-order cumulant of signals, which are from(random) phase harmonic processes, is nonzero and its one-dimension slice is also a harmonic process.

理论推导表明，随机相位谐波过程时间平均三阶累积量为非零值，而且其一维切片仍然是谐波过程。

youdao

I will try to finish every lecture on time, but sometimes if I'm in the middle of a sentence or the middle of a derivation, I may have to go over by a couple of minutes; there's no need to shuffle your feet and move stuff around.

我会尽量准时下课的,但是有时候如果我正在讲解一个概念,或者正在推导一个公式,我会稍微多讲几分钟,你们不用来回蹭脚,收拾东西什么的

耶鲁公开课 - 基础物理课程节选

There is good news, though, because the approaching holiday season is exactly the right time for the wearing of black in every derivation.

WSJ: Tina Gaudoin on Style: Back to Black