transfer of control station

It was showed that PPT was a kind of advanced propeller with small thrust, which was suitable to orbit transfer, attitude control, station keeping and formation flying for small and micro satellite.

分析认为PPT是一种先进的小推力动力装置，特别适合于微小卫星的轨道转移、姿态控制、位置保持以及星座编队飞行。

Generation of odor from environment sanitation facilities and different control technologies were introduced and analysed. Suitable odor treatment technologies for waste collecting station, waste transfer station, incineration plant, composting plant, landfill site and night soil treatment plant were suggested.

介绍并分析了环境卫生设施臭气的产生以及多种臭气治理技术，提出适合于环境卫生设施垃圾收集站、垃圾中转站、焚烧场、堆肥厂、填埋场、粪便处理厂的臭气治理技术。