单词：mandrel bar
mandrel bar的用法和样例：
例句
- The results indicate that the influence of the metal mandrel is constant.结果表明，金属芯棒的影响是恒定的。
- The paper involves the new process employing pull mandrel for pipe-elongating with the twohigh rotary elongator.介绍了在二辊斜轧延伸中采用拉力芯棒轧制的新工艺。
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