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Water ring vacuum pump with the impeller rotation, the gas entered the left crescent-shaped part.
式真空泵随着叶轮的旋转，气体进入左边月牙形部分。
youdao
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Water ring vacuum pump with the impeller rotation, the gas entered the left crescent-shaped part.
式真空泵随着叶轮的旋转，气体进入左边月牙形部分。
youdao