The structure and working mechanism on the new type of spring-piston pressure auto-balancing device with condenser was introduced.

介绍了作者自行设计的带冷凝器新型弹簧活塞式压力自平衡装置结构及其工作原理。

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In rigid metal containers, that is piston pressure equipment, experimental study on compression crushing of granular layer is carried out.

在刚性金属容器-活塞压力设备中，进行颗粒层受压破碎过程的试验研究。

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The intelligent control for ram piston pressure was researched to solve the problems of slow response speed, big overshoot and bad robustness of general PID control.

针对上顶栓压力常规PID控制存在响应慢、超调量大、抗干扰能力不强的问题，进行上顶栓压力的智能控制研究。

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The piston has a cross-sectional area, a, and the force pressure is force per volume area.

我们以活塞系统为例，来说明膨胀功。

麻省理工公开课 - 热力学与动力学课程节选

Pressure, the piston goes down by some volume l.

我们只讨论膨胀功。

麻省理工公开课 - 热力学与动力学课程节选

So expansion work, for instance, or compression work, is if you have a piston with a gas in it. All right, you put a pressure on this piston here, and you compress the gas down. This is compression work.

力乘以距离，就是功，功有许多种：,电可以做功,驱动电机与电风扇,磁力也可以做功。

麻省理工公开课 - 热力学与动力学课程节选

Instead of sparking the ignition when the piston is close to top dead center (when the air is compressed), that spark occurs as the piston is pulling away, when the air pressure is at its most turbulent, creating much faster ignition and more power.

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To prevent this, milk is forced under extreme pressure and at high velocity to pass through tiny passages by a piston pump.

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