changeover system

基本解释

There shall be semi-auto change over system in the gas yard and main pressure valve and relief valves should be located outside the lab building.
安装半自动转换阀控制气瓶更换，主要的控制阀门和减压阀门都安装在实验室外。
LPG bi-fuel system placed in the EFI engine is introduced in this article, the fuel change-over switch in the LPG system is to control the fuel conversion.
介绍了一种可用于电喷发动机的LPG改装系统，系统设置了燃料转换开关来控制燃料的转换。
As a result of the modification, working conditions of the bar change-over system has been improved, piercing quality ensured and noise level significantly lowered.
使用改进后的顶杆转交装置，改善了更换装置的工况，保证了穿孔质量，大大地减小了噪音。

France's huge union-dominated education system, with 1m teachers in over 70, 000 schools, is stubbornly resistant to change.
ECONOMIST: France