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holing through survey
expl. 贯通测量为保证巷道按设计要求正确贯通所进行的全部测量工作
space 贯通测量
holing-through survey
expl. 贯通测量保证巷道的两个或多个对向或同向工作面按设计要求贯通而进行的测量工作

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