rigid charging machine

例句：

1. 1. The material is very rigid and will not bend easily.
   这种材料非常坚硬，不易弯曲。
2. 2. The rules are very rigid and must be strictly followed.
   规则非常严格，必须严格遵守。
3. 3. The team is made up of rigid members who work together seamlessly.
   这个团队由非常团结的成员组成，他们合作得非常顺畅。