methods time measurement
... method standard 方法标准 method time measurement 时间计量方法 method 方法 ...
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... flow measurement 测流止时间 real-time measurement of liquid level 液位实时测量 method of time measurement 时间计量方法 ..
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几个世纪以来，人们开发了多种不同的计量时间方法。
Over the centuries people have developed different ways of telling the time.
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作为狩猎者，人们不需要计量时间的方法。
As hunters, people did not need a way to measure time.
方法：采用光斑毒性计量时间测试、对比法。
METHODS: Testing and comparing each drug by means of photosensitizing toxicity measurement time.
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