By broking the wall of powdered oils with ultrasonic, the oil extraction efficiency yield was 65%, which met the need of determining POV.
超声波破壁法提油其提油率可达65%左右，可满足测定要求。
It is practical significant to improve oil extraction efficiency by selecting suitable pretreatment and the squeezing process according to rapeseed inherent characteristics.
根据油菜籽的这些固有特性，选择适宜的预处理方法和压榨工艺对改善油脂的提取效率具有实际意义。
Considering factors of extraction efficiency, oil yield and environmental protection, the ultrasonic extraction and the supercritical carbon dioxide fluid extraction are the appropriate methods.
从提取效率、油的得率及绿色环保几个因素综合考虑，超声波提取法和超临界二氧化碳萃取法是比较理想的两种提取方法。
To find out a low cost, low resource-consuming and high efficiency process to extract essential oil from citrus peel, microcapsules along with aqueous two-phase extraction were adopted.
为寻找一条适合工业化生产的低成本、低能耗、高效率的柑桔精油提取工艺路线，该文采用微胶囊与双水相联合萃取技术提取柑桔精油。
Opetation efficiency is high, lifting load is heavy, movable and flexible etc. , is an ideal movable extraction apparatus in oil field.
具有作业效率高、提升载荷大、机动灵活等特点，是理想的移动式采油设备。
The principle of the increase efficiency baffle and its application in the oil fume extraction system of residential kitchen are introduced.
介绍了增效导流板的原理及在住宅厨房抽油烟系统中的应用。
The test is a research on the extraction of distilling essential oil from leaves by comparing efficiency of extraction by three reagents. Those are ether, ethyl acetate and ether from Petroleum.
本试验对树叶中提取精油萃取液进行了研究，通过三种不同试剂萃取，对水蒸汽蒸馏产物所得的萃取率来研究其适合度。
The petroleum carboxylic acids(mainly naphthene acids)in the diesel oil of Liaohe oil isolated by the extraction with solution of a1coholic sodium hydroxide, and the efficiency is not lower than 90%;
采用醇碱水溶液萃取方法分离出辽河油直馏柴油馏分中的石油羧酸（主要为环烷酸），采用重量法测出的分离效率不低于90％；
The petroleum carboxylic acids(mainly naphthene acids)in the diesel oil of Liaohe oil isolated by the extraction with solution of a1coholic sodium hydroxide, and the efficiency is not lower than 90%;
采用醇碱水溶液萃取方法分离出辽河油直馏柴油馏分中的石油羧酸（主要为环烷酸），采用重量法测出的分离效率不低于90％；
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