oblique crank Z

例句：

1. 1. The obliquecrank Z is crucial for the smoothoperation of the machine.
   斜齿轮对于机器的平稳运行至关重要。
2. 2. The engineer designed aZ-gear to improve the efficiencyof the machinery.
   工程师设计了一个Z型齿轮来提高机械的效率。
3. 3. Theoblique crank Zwas used in the construction ofthe bridge, which spans overa river.
   斜齿轮被用于桥梁的建设，这座桥横跨一条河流。