crankcase compartment

例句：

1. 1.The car's crankcase compartment is a hidden treasure for collectors.
   这辆车的曲柄箱隔间是收藏家们的隐藏宝藏。
2. 2. The engineer carefully inspected the crankcase compartment to ensure it was in good condition.
   工程师仔细检查了曲柄箱隔间，确保它处于良好状态。
3. 3. The crankcase compartment was designed to protect the engine from damage during transport.
   曲柄箱隔间被设计来保护发动机在运输过程中免受损害。