The particle valve model, obstacle cell valve model as well as the body fitted valve model representing the valve motion were established.

建立了反映气门运动的粒子阻滞模型、障碍物单元模型以及贴体气门模型，并提出计算粒子阻滞的修正公式。

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The simulation program for the valve motion was developed, and simulation tests were carried out on the valves of both Model F800 and Madel 3nb-1300 drill pumps.

此外编制了泵阀运动规律的仿真程序，并分别对F800钻井泵泵阀和3nb—1300钻井泵泵阀进行了仿真试验。

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Valve motion is analyzed with different refrigerants in the compressor. It is discovered that density of refrigerant have great influence on the movement of valve.

对制冷压缩机的气阀采用不同工质时的运动规律进行了研究。

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Mike Ambinder is the company's very own experimental psychologist and he's been outlining some of Valve's work with biofeedback technology, including eye-motion controls for Portal 2 and perspiration-based gaming adjustments on Left 4 Dead.

ENGADGET

It's hard to get totally excited about a PC hardware peripheral, given the smaller quantity of games (particularly hardware-specific titles) over in desktop land, but with Valve support and what appears to be the perfect control scheme (dual analog sticks, dual fully 3D-sensing motion controllers), we'd say the Hydra has a better shot at winning us over than anything else of its ilk.

ENGADGET: Razer Hydra Sixense motion controller eyes-on