The disproportion of the oxygen concentration between the inlet and return sides inside the goaf observed in the field is rationally explained from fluid mechanics principle.
从流体力学原理上对现场观测采空区内部进回风两侧氧浓度分布的不均衡给予更合理地解释。
Tube Web obstruction property of Roots central vacuum cleaning system is analyzed with fluid mechanics and industry ventilate principle.
应用流体力学和工业通风原理，分析了罗茨中央真空吸尘系统的管网阻力特性；
In this paper the general working principles of pneumatic seed-metering device was analysed by tne principle of fluid mechanics.
本文运用流体力学的基本原理，对气吹式排种器的工作情况进行了分析。
According to the principle of the fluid mechanics, any system all tend towards to minimum steady state of energy, so the energy in steady flow of annular flow will be minimum.
根据流体力学的原理，任何系统都趋向于处在能量最小的稳定状态，所以在环状流的稳定流动状态下具有的能量应该最小。
The working principle of compound drive system of fluid power and mechanics is introduced. Its mechanics calculating formulae of force are given out.
介绍了一种液压-机械复合传动系统的工作原理，给出了其力学计算公式。
Mud Pump Principle is in the process of drilling mud to the drilling mud or water transmission fluid mechanics.
泥浆泵原理泥浆泵是在钻探进程中，向钻孔运送泥浆或水等冲洗液的机械。
Mud Pump Principle is in the process of drilling mud to the drilling mud or water transmission fluid mechanics.
泥浆泵原理泥浆泵是在钻探进程中，向钻孔运送泥浆或水等冲洗液的机械。
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