straight bevel gear pair

例句：

1. 1.The straight bevel gear pair is used in the transmission system to transfer power efficiently.
   直齿轮对在传动系统中用于高效地传递动力。
2. 2. The design of this gear pair has been optimized for maximum efficiency and durability.
   这种齿轮对的设计已经优化为最大效率和耐用性。
3. 3. In the manufacturing process, the straight bevel gear pair is carefully assembled to ensure smooth operation.
   在制造过程中，这个直齿轮对被仔细组装以确保平滑运行。