tunnel drilling and blasting
tunnel drilling and blasting
隧道钻孔爆破
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The main methods for the construction of tunnel are usually both the traditional drilling and blasting method and the modern method of TBM, which have their own applicable conditions concerned.
隧洞施工的主要施工方法是传统的钻爆法和现代的掘进机法，各个方法均有其不同的适用条件。
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