... hydrogen diffusion rate 氢扩散速率 Diffusion rate of gas 气体扩散速率 gas diffusion rate 气体弥散速率 ...
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Combining several techniques enables researchers to measure the rate of diffusion of these helium gas molecules, which reflect the size of the air sacs in the lung.
联合其他的仪器研究者能够测量出氦气分子的扩散率，这将反映出肺中肺泡的大小。
It was found that the shape of absorption signal was controlled by the property of the analyte, the sample vaporization rate and the gas diffusion rate.
结果表明，吸收信号形状由被测元素的性质、样品气化速率和原子蒸气扩散速率决定。
On the basis of distribution of radioactive elements and geological background, the theory equation of radon exhalation rate is derived from the decay rule of radioactive elements and gas diffusion.
根据放射性元素分布规律、地质背景及放射性元素衰变等，建立了计算氡析出率的理论公式。
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