Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/d18b18465969073742e4f9ef7a807df6.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 drill stem buckling例句_drill stem buckling英汉例句_drill stem buckling双解例句_贰靶汉英词典
On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied. 本文應用虛位移原理,在充分考慮鑽柱所処的特殊環境的基礎上,考察了斜直井眼中鑽柱屈曲的可能性。