常见例句双语例句The essential oil volume was 1.57% and 0.02% extracted from Chinese fir and Eucalyptusgreen wood, respectively, by steaming distillation method.采用水蒸汽蒸馏法，获得杉木生材精油的得油率为1.57％，尾叶桉生材精油的得油率为0.02％。 返回 Chinese wood oil