单词：circular tube
circular tube的用法和样例：
例句
- The hydroforming of bulging in the middle of a tube was studied.选择圆管中间膨胀的液压成形为研究对象。
- Some problems in the design of circular tubular joints are discussed in this paper.本文探讨了圆管结构相贯节点设计中的若干问题。
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