- 搜標題
- 搜題干
- 搜選項
單項選擇題
離心泵的密封環(huán)和葉輪之間的間隙在（）之間。
A.0~1mm
B.0.1~0.5mm
C.0.5~0.6mm
D.0.6~0.7mm
A.0~1mm
B.0.1~0.5mm
C.0.5~0.6mm
D.0.6~0.7mm
