另一方面，被叶轮排到气水分离室中的水又经左右回水孔流回到叶轮外缘。
On the other hand, has been separated from gas and water into the impeller chamber and the water flow by about backwater hole to return to the outer edge of the impeller.
另一方面，被叶轮排到气水分离室中的水又经左右回水孔流回到叶轮外缘。
On the other hand, has been separated from gas and water into the impeller chamber and the water flow by about backwater hole to return to the outer edge of the impeller.
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