exact

例句与用法

Shoot for the exact centre of the belly if he faces thee .
假使他脸朝你，瞄准腹部中央射击。
The exact length of the year is 365 days 5h 48min 46s .
一年的精确时间是365天5小时48分46秒。
The exact mechanism of dealkylation has not been established .
脱烃作用的确切机制还没有确定。
Gauges are used for finding out the exact thickness of a wire .
量规用来测量金属线的准确粗细。
An exact multiple of the haploid number is called euploid .
确切的单倍体数目倍增被称为整倍体。
This may not be exact history, but it is great poetry .
这可能不是真确的历史，而是伟大的诗篇。
It is not easy to establish the exact sequence of events .
要确定事态演变的明确结果，并不容易。
We have a discussion of how they behave for exact sequences .
我们讨论了它们在正合序列中的动态。
But the exact direction of causation is hard to establish .
但是因果关系的具体程度是很难确定的。
It is difficult to ascertain the exact duration of protection .
要弄清确切的予防有效期并不容易。