“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	Xuehai Academy Xue Hong Lei Shi Xue Hui Xue Ji Xuejiagang Xuejiagang Culture Xuejiagang Culture porous stone knife Xue Jingshi Xue Ju Xue Juexian Xuelang Ji Xuelang poetry Xuelizuan the Steed Xuelong icebreakingresearch vessel Xue Long Poler Research Vessel Xue Lundao Xue Muqiɑo Xue Neng Xuen Heonmai, Ceremony Song for Building Bamboo House Xue Qunji Xu Erchong Xue Ruolin Xueshan Xue Shanggong Xue Shanggong's Catalog of Inscriptions on Sacrificial Vessels

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