thin-wall steel tube

• 薄壁钢管,薄钢管

thin-wall steel tube的用法和样例：

例句

1. He slipped the telescope into a steel tube.
   他将望远镜收进一根钢管内。
2. We ranged steel pipes according to thickness and length.
   我们把钢管按粗细和长短分类。