根据测量吸光率的变化速度即可测出过氧化氢酶的活性。
The variation rate was able to determine the catalase vigor.
它的存在完仝是由角速度的变化率引起的。
Its presence is due solely to the rate of change of the angular velocity.
加速度指的是速度随时间的变化率。
By acceleration is meant the rate of change of velocity with time.
提出破舱临界渗透率的概念，明确船舶破舱后进水量速度的变化规律。
Moreover, a concept of critical permeability for ship breakage is put forward.
提出破舱临界渗透率的概念，明确船舶破舱后进水量速度的变化规律。
Moreover, a concept of critical permeability for ship breakage is put forward.
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