P PM无线光通信的关键问题之一在于时隙时钟与帧同步信号的恢复。

One of the most critical points in optical PPM radio communication lies on the recovery of slot clock and frame synchronization signal.

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问题在于这男人犯罪时是否处于精神失常状态？

The question is, was the man insane when he committed the crime?

《牛津词典》

问题在于，这种化合物对大脑有混合作用，这种情况在服用精神药物时并不少见。

The problem is that the compound has mixed effects in the brain, a not unusual occurrence with psychoactive drugs.

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The crucial point, when you're at the IMAX is, although it's very realistic, part of you is aware that you're just in the theatre.

最关键的区别在于，看巨幕电影时，虽然很真实，但你仍然意识到是在电影院里。

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And my bet also is that that sort of distinction, how much teeth you show when you smile, is the sort of thing that would show regional and country by country differences.

我打赌区别还在于，微笑时你露了多少颗牙齿，这可以看出地区和国家的不同。

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And so when the personality theorist says the key to personal identity is the same personality. They don't mean literally the very same set of believes and desires.

所以当人格论专家说道,人格同一性的关键在于,同样的人格时，他们指的不是,一成不变的一系列信仰和渴望。

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