Refer to lubrication schedule 设备铭牌上的注解,什么意思?

Refer to lubrication schedule 设备铭牌上的注解,什么意思? lubrication refer to refer to refer to refer to 的含义 refer to 什么意思? 翻译：refer to refer to .as .是什么 refer to ,attampt是什么意思 refer to 的用法 refer to和refer to...as...的区别 refer to 麻烦问一下. refer to means啥意思? refer to 可不可以在句首用? what refer to sb means? refer to有些什么用法? Pls refer to enclose schedule