It was found that 78% zinc extraction was obtained at room temperature and atmosphere pressure.
试验结果表明：在常温常压下，用硫酸浸出该氧化锌矿石锌的浸出率可达到78%。
As there isn't much change room for head and motor efficiency, we have to take measures to increase pump efficiency and brine salinity to decrease the electricity consumption for brine extraction.
而扬程和电机的效率均无多大变化空间，要使采卤电耗较低可从提高泵的效率和卤水的含盐量方面来想办法。
Under room temperature conditions, spinach was extracted with methanol-HCl (4:1 by vol), followed by a second extraction in methylene dichloride.
在室温条件下，采用体积比4∶1的甲醇和盐酸混合溶液提取，用二氯甲烷萃取。
The drill and petroleum extraction tools test-well is built in room, that not only can ensure that test environment meeting the test request but also is very convenience for equipment maintenance.
整个钻采工具试验井建在专用实验室内，既可保证试验环境符合测试要求，又可极大的方便设备维护。
The results show that better extraction effect can be got by using 0.5-1 % citric acid solution for extraction solution and 95 % alcohol for elution solution at normal room temperature.
结果表明：在常温下以0.5~1%的柠檬酸为提取剂，95%的乙醇为洗脱剂，能达到很好的提取效果。
Air of kitchen and diesel generator room is exhausted by filter-type extraction hood, which is laid on the roof of the building.
厨房及柴油发电机房排风采用过滤型排气罩，且屋顶排放。
The principle and application in the environmental analysis of Solid Phase Extraction (SPE) combined with Room Temperature Phosphorescence (RTP) analysis were reviewed.
综述了固相（微）萃取-室温磷光技术的主要方法以及在环境分析中的应用。
The principle and application in the environmental analysis of Solid Phase Extraction (SPE) combined with Room Temperature Phosphorescence (RTP) analysis were reviewed.
综述了固相（微）萃取-室温磷光技术的主要方法以及在环境分析中的应用。
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