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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YS-1600 piston pressure gauge specifications include: accuracy class, range, piston area, piston chassis and connectors, special weights, interface thread and so on.

YS - 1600型活塞式压力计的技术参数包括：精度等级、测量范围、活塞面积、活塞的底盘及其连接件质量、专用砝码质量、接口螺纹等参数。

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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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