On the premise that before secondary change the bed thickness changes gradually and the rock volume is constant,the au- thor uses translational iteration to eiiminate the secondary change of bed thickness.是什么意思_On the premise that before secondary change the bed thickness changes gradually and the rock volume is constant,the au- thor uses translational iteration to eiiminate the secondary change of bed thickness.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句