There is a set of reduction gears in the carriage.
举一反三
- A carriage is a horse drawn carriage.
- In using reduction gears to obtain efficient propeller speeds， （）.
- A set of are installed to control the speed and direction of the vehicle. A: wheels B: gears C: gea D: wheel
- A set of _____ are installed to control the speed and direction of the vehicle. A: arrays B: gears C: giants D: aliens
- Containerization is only suitable for ocean carriage.