Due to the complexity of occurrence condition and the polytropy of influencing factors,the excavation and supporting in soft failure roadway under high ground stress become very difficult.
高地应力破碎软岩巷道,由于赋存条件的复杂
响因素的多变,使得该
巷道的开挖与支护极为
。
,多变现象Due to the complexity of occurrence condition and the polytropy of influencing factors,the excavation and supporting in soft failure roadway under high ground stress become very difficult.
高地应力破碎软岩巷道,由于赋存条件的复杂响因素的多变,使得该巷道的开挖与支护极为。
明：以上例句、词分
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