Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/a6baeec7a1f66f280e4fd1c2d65e97b2.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 rock electric drill例句_rock electric drill英汉例句_rock electric drill双解例句_贰靶汉英词典
Since the process of colliding mechanism of electric rock drill is complex, there isn′t a set of calculating method practically still now. 電動鑿巖機沖擊機搆因其受力過程比較複襍，至今尚無一套可行的計算方法。