Analysizing the principle and structure of borehole defletion tool introduced by American patent document of 1986, authors calulate its defletion effect which proves satisfactory.是什么意思_Analysizing the principle and structure of borehole defletion tool introduced by American patent document of 1986, authors calulate its defletion effect which proves satisfactory.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句