three-throw crankshaft

例句：

1. 1.The car's engine is a three-throw crankshaft, which makes it run smoothly.
   这辆车的引擎是一个三连杆曲轴，这使得它运行顺畅。
2. 2.The engineer had to replace the three-throw crankshaft due to wear and tear.
   工程师不得不更换磨损的三连杆曲轴。
3. 3.The technician was able to repair the three-throw crankshaft without any issues.
   技师能够顺利地修复三连杆曲轴，没有任何问题。