[机] 心骨

core rod的用法和样例：

例句

The acid resistant stability of the core bar for reducing the break of the compound insulator is dependent upon the prevention performance of the adhesive colophony.用于减少复合绝缘子发生脆断的耐酸芯棒的性能稳定性取决于芯棒中起粘合纤维作用的树脂的防护性能。
All bronzes of that period were cast using a clay core.那个年代的所有青铜器都是用黏土作泥芯铸造的。

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