预润滑 meaning in English

prelubrication

The operation of the cleanness oil less - - - - - - the preparation lubrication design eliminated the air piping lubrication and the oil - fog letting
清洁无油的运行? ?预润滑设计消除了空气管道润滑和油雾排放。
" automatic reset n . c . series connected thermal overload protection , two moisture sensing probes , prelubricated shaft bearings and class f insulation . * efficiencies include all mechanical losses including mechanical seals .
自动重置n . c .系列,连接过热保护装置,两个潮气检测探头,预润滑轴承和f级绝缘。 *效率包括所有机械密封中的机械损失。