一次爆破成井
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A well was formed by one-time blasting
以上为机器翻译结果，长、整句建议使用 人工翻译 。
据此确定了与矿岩条件相匹配的炸药类型，得到了试验地段一次爆破成井试验的相关参数选取依据。
Based on this, the explosive type that matched the ore rock conditions was determined and the basis for selecting the related parameters of the test of shaft excavation by one blasting was obtained.
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