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%。
The main operating parameters of this device such as length of distillation tube, volume of collected condensate, and choice of adsorption media were optimized.
对其精馏管长度、回收冷凝液体积、吸收介质等影响富集效果的关键因素进行了优化。
Water wash injections, typically continuous and low volume, are used to avoid salt build-up or reduce corrosiveness in the distillation column overheads.
水洗水注入设施，典型的是连续小量，避免结盐或减缓分馏塔顶的腐蚀。
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