The engine is () at 6,000 revolutions per minute.
A: turning in
B: turning off
C: turning over
D: turning to
A: turning in
B: turning off
C: turning over
D: turning to
举一反三
- They concentrated their efforts on ______ products of high quality. A: turning on B: turning off C: turning out D: turning over
- Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except______.
- The function of a clutch is to help convert the turning motion produced in the car’s engine into the turning motion of the wheels.
- Before starting an engine by air, the engine must（） A: be turned by a turning gear for at least one minute B: be turned by a turning gear for at least two minutes C: be turned at least one complete turn D: be turned at least two complete tur
- . Don’t forget _____________ off the light when you leave the room. A: turning B: turn C: of turning D: to turn