“double shield rock tunnel boring machine”的概念、定义、翻译、参考文献-科学参考

单词	double shield rock tunnel boring machine
释义	double shield rock tunnel boring machine Encyclopedia 工学岩石掘进机释 double shield rock tunnel boring machine双护盾岩石掘进机只有两个护盾的岩石掘进机。又称伸缩护盾式岩石掘进机、支撑护盾式岩石掘进机。
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