In using reduction gears to obtain efficient propeller speeds， （）.
举一反三
- There is a set of reduction gears in the carriage.
- The linear motion of a diesel engine piston is converted to the rotary motion required to drive gears， propeller shafts， and generators by the （）.
- Misalignment of the drive shaft and propeller shaft flanges can be detected by using a dial indicator or （）.
- Efficient writing aims to convey the ideas without using too many words or without ( ).
- What are the main restrictions on the maneuverability of the direct drive propulsion system when it is moving at a low speed?_____ A: Minimum stable speed of main engine B: Reduction gearbox speed C: Clutch performance D: Propeller size