活塞缸筒中心线 piston cylinder centerline
起作用的缸筒活塞密封 affected cylinder piston seal
损坏的缸筒活塞 damaged cylinder piston
损坏的缸筒活塞密封 damaged cylinder piston seal
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。
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.
针对JL 465 Q1发动机部件(缸筒、活塞和缸盖)在不同典型工况下的传热进行了数值分析计算。
The numerical computations for the heat transfer of JL465Q1 engine's parts (cylinder block, piston and cylinder head) under different operation cases were performed.
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