However, after the experiment described above the difference in time between the two clocks was less than a billionth of a second, which is why very accurate clocks were needed.

但是经过上述实验后，两个钟表的时间差距不到十亿分之一秒，所以需要用两个非常精准的钟表。

youdao

The difference in time scale between the few hours his world has evolved and the billions of years wild nature has evolved is only part of the problem.

他的世界几个小时的进化，蛮荒大自然的数十亿年的进化，其时间尺度上的差别也只是问题的一部分。

youdao

There was no significant difference in complication rate and hospital cost in two groups(P>0.05). But there was significant difference in time of operation and hospitalization(P<0.05).

两组结石残留率、近期并发症发生率、住院费用等方面差异无显著性（P>0.05），而在手术时间、住院时间等方面差异有显著性（P<0.05）。

youdao

But one difference this time is that many newspaper companies are heavily in debt from buying other newspapers.

VOA: special.2009.03.21

In fact, I'm going to use only two dimensions for most of the time because the difference between one dimension and two is very great.

实际上,大多数时候我只考虑二维的情况,因为一维和二维的差别很大

耶鲁公开课 - 基础物理课程节选

"Our study showed for the first time a clear difference between oxygen and air in the treatment of acute cluster headache.

VOA: standard.2009.12.17

To give you an idea how difficult it is to get federal government land permitting approval versus states, consider the difference in time schedules.

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The first is the difference in time zones.

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If one would look at the amount of time put in by doctors, then one will see a huge difference in the time worked by men and by women.

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