不过它们的效率和操作要求都不一样。
But they all have differing efficiencies and operating requirements.
这里有三个看似都不一样的问题，奇怪的是，它们是由同一个问题演化出来的，我来告诉您这是为什么。
How? Here are three problems that all seem different. Surprisingly, all are the same problem, in disguise.
我们停下来观赏它们翻滚嬉戏，潜入水底，给我们看它们尾巴上特别的花样，每头鲸鱼尾巴的花样都不一样，就像人类的指纹。
We paused to watch them as they rolled and played, diving down to show us their distinctive tail patterns, as unique to them as our fingerprints are to us.
他认为这些坑每个都不一样，所以它们应该是由于偶然坠落的物体造成的，像是小行星。
He concluded that the caters were so uniform, so they had to be the result impacted falling bodies, such as mediea ash.
神经衰弱属轻型精神病，精神分裂症属重型精神病，它们的病因，临床表现，预后和转归都不一样。
Neurasthenia is a light mental illness, schizophrenia is a severe mental illness, their etiology, clinical presentation, prognosis and outcome is different.
神经衰弱属轻型精神病，精神分裂症属重型精神病，它们的病因，临床表现，预后和转归都不一样。
Neurasthenia is a light mental illness, schizophrenia is a severe mental illness, their etiology, clinical presentation, prognosis and outcome is different.
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