“inner advance heading method”的概念、定义、翻译、参考文献-科学参考

单词	inner advance heading method
释义	inner advance heading method Encyclopedia 工学正洞超前导坑法释 inner advance heading method正洞超前导洞法在隧道施工之前的正洞截面上的某个部位先行开挖一个断面较小的导洞以探明正洞前方地质情况，最后将导洞扩挖为隧道正洞的方法。
随便看	anodization anodized aluminium oxide assisted synthesis anodizing coatings anodoluminescence an official's request for retirement anoikis An Old and Famous Enterprise An Old Poem: Composed for Jiao Zhongqing's Wife An Old Scholar's Common Saying An Old Scholar Went into Raptures anomalies of skeletal muscles anomalistic mean motion anomalistic month anomalistic period anomalistic revolution anomalistic year anomalon anomaloscope anomalous anomalous absorption anomalous absorption, abnormal absorption anomalous arc anomalous behavior anomalous cancellation anomalous circular photogalvanic effect

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