engine overspeed switch

例句：

1. 1. The engineer found the overspeed switch and turned it off to prevent further damage.
   工程师发现超速开关并关闭它以防止进一步损坏。
2. 2.The car's engine overspeed switch was faulty, causing it to stall on the highway.
   汽车的引擎超速开关有故障，导致它在高速公路上熄火。
3. 3.The technician had to replace the overspeed switch in the old car, which improved its performance significantly.
   技术人员不得不更换旧车中的超速开关，这显著提高了其性能。