减少抽气时间，效率更高。
目的：探讨闭合性气胸抽气时间与疗效的关系。
Purpose: Discussing the relation between closure pneumothoraxs air exhaust time and curative effect.
用途：常用于要求抽气时间短和排气量大的场合。
AppIications: Mostly used where short pumping time and large throughput are required.
研究结果对进一步进行长输管道真空干燥抽气时间的预测研究提供了重要的依据。
It is considered that the results are important base to further study and predicate the air exhausted time for vacuum drying of long-distance pipeline.
根据流体力学、热力学、气体动力学方程和能量不变方程，求得了自吸时间和抽气速率公式。
Equations based on hydrodynamics, thermodynamics, gasdynamics and the law of energy conservation are used to find the time required for self-priming and rate of air pumping.
对于短时间内的剧烈放气过程，是根据放气后的抽气试验数据拟合出抽气曲线，以此反算放气量的大小。
For an acute outgassing course in a short time, a fitting curve is obtained according to the pumping data after outgassing, so the outgassing amount is obtained from the curve.
对于短时间内的剧烈放气过程，是根据放气后的抽气试验数据拟合出抽气曲线，以此反算放气量的大小。
For an acute outgassing course in a short time, a fitting curve is obtained according to the pumping data after outgassing, so the outgassing amount is obtained from the curve.
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