Warning: file_put_contents(/www/wwwroot/ppbbu/n94.cn/cache/c12823e39e8b1810948469d5e82ab204.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/n94.cn/index.php on line 55 blasting mat例句_blasting mat英汉例句_blasting mat双解例句_94生活常识网有道词典
The blasting mechanism of smooth blasting soft mat layer charging construction (for example, air layer and layer) is introduced. 以空氣墊層和水墊層爲例介紹軟墊層光麪爆破裝葯結搆爆破機理。