[".엽판의 절단에 대해
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分段式多级泵保留前后盖板可以防止与导叶基圆距离过大而造成泵效率降低；自吸泵为了不破坏汽水分离的效果，也只允许车削叶片部分，保留前后盖板。那么我是不是可以理解为在能保证盖板强度的前提下，所有泵的叶轮都应该保留盖板而车削叶片来保证泵效率不会下降很大。怎么老是感觉盖板保留的话比车削去功率会大（重量大？）？请老师给解答一下
这个只有生产企业懂，我们只是使用单位。
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