During the simulated experiment of gears running-in, the surface topography of samples are changed.
本文通过齿轮副跑合的模拟试验,得出了齿轮副在跑合过程中表面形貌的变化规律.
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与支架植入后7天比较,气道狭窄段腔径、气促指数、FVC、FEV1、PEF值的差异无显著性(P>0.05)。
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He blew mind out in a car. He didn't notice that the lights had changed.
他在车里“昏”头了, 他居然没注意到灯号已经变了.
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He blew his mind out in a car. He didn't notice that the lights had changed.
他在车里昏头了, 他居然没注意到灯号已经变了.
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Even though the entire imagery had to be changed, the validity of those equations persisted.
纵使整个形象的描述都必须加以改变,这些方程也继续有效.
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