working environment是甚么意义

　　working environment是甚么意义：功课情况

 

　　working environment的例句和用法

　　Select the suitable lubricating oil or grease according to the different environmental temperature, to ensure the normal lubrication when the drifter is working.
　　为了保障机置运行时的一般光滑，应按照功课情况温度公道选用光滑油和光滑脂。