A plunger is mounted in the valve core.
柱塞安装在阀门的核心。
The lower valve core performs a switching function.
下阀芯起开关作用。
The sleeve is horizontally installed in the valve core in the form of transverse movement.
套筒呈横向运动的形式横向装于阀芯中；
The sleeve is horizontally installed in the valve core in the form of transverse movement.
套筒呈横向运动的形式横向装于阀芯中；
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