one flank gear rolling tester

例句：

1. 1.This rolling tester is designed to accurately measure the friction between two surfaces.
   这个滚动测试器设计用来准确测量两个表面之间的摩擦力。
2. 2. The engineer used this tester to verify the performance of the new gear design.
   工程师使用这个测试器来验证新齿轮设计的运行性能。
3. 3. The rolling tester was crucial in identifying any defects in the gear manufacturing process.
   滚动测试器在识别齿轮制造过程中的任何缺陷中起着至关重要的作用。