The use of hydraulic cylinder in hydraulic elevator, the part usually has five parts: piston and piston rod, cylinder and cylinder head, buffer device, sealing device and exhaust device.
液压升降机中使用的液压油缸，其组成部分通常有五部分：活塞和活塞杆、缸筒和缸盖、缓冲装置、密封装置、排气装置。
A type of pumper that uses a hydraulic power source, a cylinder, and a piston attached to the polished rod.
利用液压动力源、液压缸和固定于光杆的活塞进行抽油的一种抽油机。
Apply to reciprocating motion of hydraulic cylinder piston rod sealed device can also be used to cover the static flange seal.
适用于液压缸活塞杆往复运动用密封装置，也可用于法兰端盖的静密封装置。
A hydraulic lock is installed on the vertical leg cylinder to avoid extending of the leg piston rod in operation.
在支腿垂直油缸上装有液压锁，能可靠地防止行驶时支腿活塞杆伸出。
In this paper the working principle of electro - spark surfacing is introduced. Surfacing process is applied to restoring hydraulic piston - rod and gains good effectiveness.
主要介绍了电火花沉积堆焊工作原理，应用沉积堆焊工艺修复液压活寒杆，取得了良好效果。
Working principle of two kinds of hydraulic clamping devices, which based on rod-less piston, is introduced, and the mechanics calculation formulas were also given.
介绍了两种基于无杆活塞的液压夹具，分析了其工作原理，给出了相应的计算公式。
The steel letters are pressed on the sign board arranged on the sign board platform through a piston-rod of a hydraulic pressure cylinder.
钢字通过液压缸的活塞杆被压到设置在标志牌平台上的标志牌上。
The steering engine is steered through the position of the cylinder on the piston rod which is controlled by hydraulic pressure.
利用油压控制油缸在活塞杆上移动的位置进行操舵。
The steering engine is steered through the position of the cylinder on the piston rod which is controlled by hydraulic pressure.
利用油压控制油缸在活塞杆上移动的位置进行操舵。
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