液压升降溢流筒 hydraulic overflow cylinder
溢流筒
Overflow cylinder
以上为机器翻译结果，长、整句建议使用 人工翻译 。
它主要由内筒、外筒、带有单向阀的活塞、溢流件、调节环，密封圈等组成。
The leakproof hydraulic damper is mainly composed of an inner cylinder, an outer cylinder, a piston which is provided with one-way valves, overflow members, adjustment rings, seal rings, etc.
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