loosening blasting的用法和樣例：
例句
- The design methods and measures of safety protection of weakly loose blasting are introduced with field cases.
摘要通過工程實例，介紹了微弱鬆動爆破的設計方法及安全防護措施。 - The in-seam distressing entry layout is combined with concussion blasting technique,so that the tailentry in soft rocks can be effectively maintained.
首次提出了應用本煤層布置卸壓巷並結合鬆動爆破技術解決沿空軟岩巷道有效維護的難題。
