单选题改变往复泵的流量不能用改变()的方法。A转速B活塞有效行程C旁通回流阀开度D排出阀开度
单选题
改变往复泵的流量不能用改变()的方法。
A
转速
B
活塞有效行程
C
旁通回流阀开度
D
排出阀开度
参考解析
解析:
暂无解析
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