Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/986ca295d202eed27db9787d92158df9.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 drill stem buckling例句_drill stem buckling英汉例句_drill stem buckling双解例句_歐米惠必应词典
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。