traction and thermodynamic test

例句：

1. 1. The car's engine is producing a lot of traction.
   汽车的引擎产生了很大的牵引力。
2. 2.The rope was strong enough to provide good traction for the climber.
   绳子足够强，为攀岩者提供了良好的牵引力。
3. 3.The new tire has better traction than the old one.
   新轮胎的牵引力比旧轮胎好。
4. 1. The study of thermodynamics is crucial in understanding energy conversion processes.
   热力学的研究对于理解能量转换过程至关重要。
5. 2. The engineer used thermodynamic principles to optimize the design.
   工程师利用热力学原理优化了设计。
6. 3. The experiment measured the efficiency of the thermodynamic process.
   实验测量了热动力学过程的效率。