英语词汇“pressure arch”的意思、释义、用法解释及翻译-春雷网

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词汇	pressure arch
释义	Definition of pressure arch in English: pressure arch noun Mining A distribution of pressure over an excavation resembling that in a structural arch, caused by increased pressure on the side walls of the excavation, which act as abutments supporting the strata forming the roof. Origin 1950s. Definition of pressure arch in US English: pressure arch noun Mining A distribution of pressure over an excavation resembling that in a structural arch, caused by increased pressure on the side walls of the excavation, which act as abutments supporting the strata forming the roof. Origin 1950s.
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