alternate tension

例句：

1. 1. The car's engine has a lot of alternate tension.
   这辆车的引擎有很多交替张力。
2. 2. During the construction phase, we need to pay attention to the alternation between work and rest.
   在施工阶段，我们需要注意工作与休息之间的交替。
3. 3. The team needs to maintain an appropriate balance between their workload and the alternation of tasks.
   团队需要保持工作量和任务交替之间的适当平衡。