working environment是什么意思：作业环境

 

　　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.
　　为了保证机置运转时的正常润滑，应根据作业环境温度合理选用润滑油和润滑脂。