... 阀片升程 lift of valve plate 针阀 升程 needle lift 阀片升程面积 valve lift area ...
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Please adjust the lift of valve plate. DLpaR.
请调节阀门开度。
youdao
This invention provides a set of self-powered mechanical device, an auto-regulating movable weir-plate, a back-flushing buffer and lift-pull valve.
本发明提供一套自力式机械装置、自动调节活动堰板、反冲阻流器、提拉阀。
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