It is nothing but a low speed engine.

这只不过是一台低速发动机。

youdao

Using a permanent-magnet generator, the system delivers up to 400 amps of 28-volt DC electric power at low engine speed.

由于使用了永磁体发电机，CMPS系统可以在低功率速度下，提供最高400安培28伏特直流电源。

youdao

The vessel is to be single fixed pitch propeller propulsion with one (1) low speed diesel engine located aft.

本船推进系统由1 台位于艉部机舱内的低速柴油机和一个定距螺旋桨以及轴系组成。

youdao

The hull's shape and the medium speed diesel engine means the yacht produces low emissions.

CNN: Inside the $150m Rolls Royce of yachts

Ask any engineering executive at any car company: In order to meet new and ambitious fuel-economy standards in the global markets including a U.S. Corporate Average Fuel Economy standard of 54.5 mpg by 2025 cars and trucks of the near future will have to exploit the advantages of electric drive (low rpm torque, low-speed efficiency, regenerative braking) in urban driving, while reserving the gasoline-fired engine for times of peak load and sustained demand.

WSJ: Ford C-Max Hybrid Energi: The Bawdy Electric