一个技术难题是气穴现象，一旦发生气穴现象，位于旋转螺旋桨叶后方的低压会产生气泡。
One technical difficulty is cavitation, where low pressure behind a turning blade causes air bubbles.
我们的飞行甚为颠簸，因为遇到气穴。
气穴可以由各种原因引起。
气穴的发生将产生噪声并缩短泵的寿命。
Cavitations occurring in the pump will bring out noise and shorten the life of the pump.
超声波清洁器是根据气穴原理进行设计的。
Ultrasonic cleaning is based on the principle know as cavitations.
这种现象叫作气穴现象，会很快使叶轮气蚀，损坏。
Such phenomenon is being called as cavitation, resulting in cavitation erosion and damage of impeller in fast manner.
气穴是液压系统中常见的一种有害现象，经常发生在阀口附近。
Cavitation is a common harmful phenomenon in hydraulic transmission systems, frequently occurs near the orifice of the valves.
计算了二维轴对称气穴流场的速度、压力及气体体积比分布。
The velocity vector distribution, pressure distribution and contours of volume fraction of air were predicted for an axisymmetric case.
结果表明，具有环形槽的主阀芯结构能有效抑制气穴和气穴噪声。
The results show that the main element with circumferential undercut groove can suppress the cavitations and cavitating noise.
研究了计入气穴影响的径推联合动静压浮环轴承的动态性能和稳定性。
The dynamic performance and stability of a externally pressurized hybrid journal-thrust floating ring bearing were studied considering the cavitations in deep pockets.
因此本课题研究存在气泡和气穴时无阀微泵的动态特性是十分必要的。
Therefore, it is necessary to study the dynamic characteristics of valve-less micropump accompanying gas bubbles and cavitation.
研究结果表明：阀的结构参数对流场的分布和气穴的产生有较大的影响。
The result showed that the structural parameters could greatly affect the distribution of flow field and the initiation of cavitation.
优越的空气释放性及抗泡沫性能，可防止因气穴的产生而引致的可压性。
Excellent Air Release and Antifoam Properties-to avoid cavitation and increased compressibility.
气穴股几乎总是由于股东们因为一些不可预知的坏消息而抛售股票而致。
This is almost always caused by shareholders selling because of unexpected bad news.
那儿将会有这新能量的气穴仍然有些浓厚因此这也许偶而是有少许的棘手。
There will be pockets of this new energy still somewhat thick so this may be a little tricky at times.
通过实验研究，得到了实验压力脉动曲线和实验气泡、气穴现象摄像数据。
The experimental pressure pulsation curve and video data of gas bubbles and cavitation phenomenon are obtained by the experiment.
管接头等元件的密封要良好，以防止空气侵入，从而控制气穴与气蚀的发生。
Fittings and other components to seal the well to prevent air intrusion, so as to control air traps and the occurrence of cavitation.
本文对低压液压管路有气泡和气穴产生的瞬态压力脉动过程进行了实验研究。
The experiments of the pressure transients accompanying the growing and collapsing of gas bubbles and cavitation in low pressure hydraulic pipelines are carried out.
管接头等元件的密封要良好，以防止空气侵入，从而控制气穴与气蚀的发生。
Components, such as pipe joint sealed well, in order to prevent the air intrusion, thus control air-pocket and the occurrence of cavitation.
本发明公开了一种基于水力气穴的船舶压舱水，例如海水，的灭菌设备和方法。
The invention disclosed provides an apparatus and method for disinfection of ship's ballast water, such as sea water, based on hydrodynamic cavitation.
同时基于液体中气体的溶解和析出物理过程，提出了气泡和气穴体积计算数学模型。
Based on the gas re-solution and releasing physical procedure, the models of gas bubble and cavitation volumes are developed.
通过分析发现，如对阀座和阀芯的结构进行改进，可以明显减小负压值与气穴发生的程度。
Result shows that the negative pressure and the cavitation can be minished by improving the structure of the valve seat and core.
通常，这些猎犬一找到瓦砾下的尸体，救援人员就会发现先前未觉察到的气穴里还有幸存者。
Often, when these dogs reveal corpses under rubble, rescuers also find previously undetected air pockets with living people in them.
通过比较分析结果，选择出填充效果均匀、熔接痕位不明显、气穴位置集中的较好成型方案。
By comparing analysis results, the best moulding project is chosen filling effect being unifor with unobvious weld line and centralizing air traps.
以插装型液压锥阀为研究对象，研究了几何结构参数及边界条件对锥阀流场及气穴现象的影响。
The hydraulic cartridge cone valve is chosen for the study of possibility to explore its effects of geometry parameters and boundary condition on flow field and cavitation of cone valve.
气泡和气穴的产生不仅会严重影响液压泵和液压系统的性能，而且会对压力脉动产生很大的影响。
The presence of cavitation and gas bubbles not only badly influences the performance of hydraulic pumps and systems but also affects the pressure transient behaviour in hydraulic pipelines.
飞机起飞后，你可以明显感觉到气穴、超重，听到空中交通管制员与其他飞机的联系——完全是飞行的感觉。
After takeoff one can feel air pockets, overload, traffic controllers speaking with other planes, - complete sense of flight.
飞机起飞后，你可以明显感觉到气穴、超重，听到空中交通管制员与其他飞机的联系——完全是飞行的感觉。
After takeoff one can feel air pockets, overload, traffic controllers speaking with other planes, - complete sense of flight.
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