When the cylinder moves backward, the piston is driven to travel backward and generates negative pressure in the front chamber of the cylinder.
当气缸向后运动时，拉动活塞向后，料缸前腔产生负压。
After the piston reaches BDC, or the lower limit of its travel, it begins to move upward.
在活塞到达下止点时，或者是活塞下限时，活塞开始向上运动。
The constant reversal of the piston travel sets up inertia forces, which increase Both with the weight of the piston and with its speed.
活塞的不断往复运动产生了惯性力，惯性力随活塞的重量及其速度的增加而增大。
An opposed-piston engine has cylinders in each of which two pistons travel in opposite directions.
对置式的发动机的每隔气缸中都有两个活塞沿相反方向运动。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
Pneumatic piston 12 travel can be limited by means of a simple multi-position mechanical stop plunger 16.
可借助于简单的多位置的机械式停止柱塞(16)限制气动活塞(12)的行程。
Pneumatic piston 12 travel can be limited by means of a simple multi-position mechanical stop plunger 16.
可借助于简单的多位置的机械式停止柱塞(16)限制气动活塞(12)的行程。
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