... 浮针阀 float needle valve 针阀杆 needle shaft; needle stem 针阀簧 needle valve spring ...
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通过针阀杆的旋转即可以关闭针阀 又可以带动清油器升降，清除喷嘴中的积碳。
The needle valve can be closed through the rotation of a needle stem, and the oil cleaning device can also be driven to lift to clean out carbon deposit in the nozzle.
球阀是带圆形孔的球体作启闭件， 球阀球体随阀杆转动， 针阀以实现启闭动作。
The valve's disc is ball with hole and driven by stem to open and close.
自锁型气弹簧是一种可以在行程任一位置锁定的气弹簧。 在自锁型气弹簧的活塞杆端部有一个针阀打开这个针阀，则自锁型气弹簧可以象自由型气弹簧那样运行；
The piston rod self-locking type gas spring end there is a needle valve open the needle valve is self-locking type gas spring can run as the free type gas spring;
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