Therefore, to optimize blast parameters was a significant measure to promote the blast effect.
优化爆破参数，提高爆破效果具有重要的意义。
Analysis of blast mechanism has revealed the qualitative relationship of rock behaviour with blast effect.
根据爆破机理的分析，得出了岩性与爆破效果的定性关系。
Confirmed the non-district single line nozzle side to deliver the effect to be inferior to the two-row nozzle minute far short-range blast effect.
验证了无分区单排喷口侧送效果不如双排喷口分远近程送风效果好。
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