中国大学MOOC: 球阀做为截断阀较普遍。 Ball valve as a cut-off valve is more common.
举一反三
- 球阀做为截断阀较普遍。 Ball valve as a cut-off valve is more common. A: 正确 B: 错误
- A common trouble with the fuel pump plunger or fuel valve spindle is （）.
- A throttle valve is a simple flow control valve, a throttle valve is virtually equal to( ).
- The word "valvulotome" means _______________. A: incision of a valve B: an opening of the valve C: an instrument for cutting a valve D: surgical repair of a valve
- In structure, all hydraulic control valves consist of______ , ______ (spool, cone or ball) and ______ used to control the valve core.