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题目内容
(桂林理工大学水力学)
(单选题)圆柱形外管嘴的正常工作条件是:( ) (本题2.0分)
A.3(l~4)D,mH90;
B.3(l~4)D,mH90;
C.l > (3~4) D,mH90;
D.l < (3~4) D,mH90
A.3(l~4)D,mH90;
B.3(l~4)D,mH90;
C.l > (3~4) D,mH90;
D.l < (3~4) D,mH90
参考答案
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