... start ==> 开动,开端,起始,起动,始,开工 start and stop lever ==> 启闭杆 start auditing ==> 开始审计 ...
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VTLEBUF 01型电动高真空蝶阀是以电动装置驱动阀杆与阀板执行启闭动作。
VTLEBUF01 electric high vacuum butterfly valve USES electric device to drive the stem disc to perform open close action.
阀杆上的短梯形螺纹适用于快速启闭操作。
Stub acme thread on stem provides rapid open-close operation.
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.
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