The results show that the contact -impact problem between the slender rod and the wall of a round hole, such as the drillstring and the bore hole wall, can be solved better.是什么意思_The results show that the contact -impact problem between the slender rod and the wall of a round hole, such as the drillstring and the bore hole wall, can be solved better.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句