Pipe effect was overcome in deep-hole blasting with blasting fuse whose speed is 6900m/s to ignite nitroamino chare.是什么意思_Pipe effect was overcome in deep-hole blasting with blasting fuse whose speed is 6900m/s to ignite nitroamino chare.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句