cycle tube valve

例句：

1. 1. The cycle tube valve is acrucial component in the engine's operation.
   循环管阀门是发动机运行中的关键部件。
2. 2.The engineer carefully inspected the cycle tubevalve to ensure its proper functioning.
   工程师仔细检查了循环管阀门，以确保其正常工作。
3. 3. The cycle tube valve was replaced afterit failed during the maintenance check.
   在维护检查中，循环管阀门失效后被更换。