润滑油沟 meaning in Chinese
lube oil pocket
oil way
Examples
- Packaging date is wrong , fuzzy replace the logo used on the identification of the laser device , detection was also found on the outer ring of these bearings have no oil groove
包装日期是错误，模糊的标识取代了正品上常用的激光图案，检测员还发现这些轴承外圈上没有任何润滑油沟。