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第1622題:离心泵在启动前未充满液体,泵壳内存在空气,吸入口处形成的负压不足以将液体吸入泵内,泵虽启动但不能输送液体的现象称为___。
A. 汽蚀
B. 气缚
C. 喘振
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答案
B
解析
暂无解析
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