locking blade
... locking apparatus 锁定装置 locking blade 锁紧叶片 locking bolt 锁定螺栓；锁紧螺栓，防松螺栓 ...
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... gate bias 控制极偏置 gate blade 锁紧叶片 gate chamber 传达室 ...
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叶片锁紧装置 blade locking device
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在泵轴的下端，泵盖及泵体形成的内腔中设置有叶轮，叶轮上设有背叶片，并由锁紧螺钉紧固；
The impeller is arranged in an inner cavity formed by a pump cover and a pump body at the lower end of the pump shaft, and back blades are arranged on the impeller and are fastened by locking bolts;
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