soft grease lubrication

例句：

1. 1.The engine needs to be lubricated with soft grease to prevent wear andtear.
   发动机需要用软脂润滑以防止磨损。
2. 2.The machine was running smoothly after being lubricated with soft grease.
   机器在用软脂润滑后运行得非常顺畅。
3. 3.The technician used a soft grease lubrication system to ensure the machinery worked efficiently.
   技术人员使用了一个软脂润滑系统来确保机械高效运转。