crankcase front cover

例句：

1. 1.The car's crankcase front cover was damaged during the accident.
   在事故中，汽车的曲柄箱前盖受损了。
2. 2. The mechanic replaced the crankcase front cover with a new one.
   机械师用一个新的替换了曲柄箱前盖。
3. 3.The car's engine compartment is accessed through the crankcase front cover.
   通过曲柄箱前盖可以进入汽车的发动机舱。