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预裂爆破
释义
预裂爆破
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理学
爆炸力学
释
presplitting blasting
预裂爆破
沿开挖轮廓布置密集炮孔,采取不耦合装药在主爆区爆破之前起爆形成一条贯穿裂缝,以减弱主爆区爆破对保留岩体的破坏并形成平整轮廓面的爆破技术。
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archives of collection
Archives of Dalai Lamas from the Collection of the Qing Court
archives office
Archives of General Administration of Sport of China
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archives of Han Ye Ping Coal and Iron Limited Company
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archives of Li Hongzhang's westernization movement in Tianjin
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Archives of Mianning County in the Qing Dynasty and Part of the Republic of China
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archives of pharaoh
archives of prime minister
archives of puppet regime in Manchuria
archives of Qing dynasty
archives of Rishengchang exchange shop,bank
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