engine casing

例句：

1. 1. The engineer inspected the engine casing for any signs of wear.
   工程师检查了引擎壳体，看是否有磨损的迹象。
2. 2. The new car comes with a warranty that includes the engine casing.
   新车附带的保修服务包括了引擎壳体。
3. 3. The mechanic replaced the engine casing after the accident.
   事故发生后，机械师更换了引擎壳体。