If the liquid level above the pump intake, it is impossible to maximum yield of extraction Wells.
若液面高于泵吸入口，那么井不可能以最大产量开采。
Distillation extraction method is used for extracting the volatile constituents of the Herba Selaginellae. The average oil yield obtained is 2.85%.
报道了用水蒸汽蒸馏萃取法提取卷柏中挥发性物质，测得卷柏挥发油的含量为2.85%。
This article introduces experiment principle, main factors influencing on the extraction yield of formaldehyde and methods suitable for testing free formaldehyde in latex.
介绍了乳胶漆的实验原理，探讨了影响甲醛萃取率的主要因素，得出适用于乳胶漆中游离甲醛的测定方法。
Walnut oil obtained by three extraction methods was researched on the yield, physicochemical properties, content of total flavone and unsaturated fatty acid.
研究了三种提取方法对核桃油得率、理化性能、总黄酮含量、不饱和脂肪酸含量的影响。
Proper combination of simple extraction and circulation extraction can increase yield and extract concentration simultaneously on the basis of assurance efficiency.
将简单提取和循环提取适当组合能够在保证效率的基础上使收率和提取液浓度有较大提高。
The results indicate that high conversion and extract yield can be obtained by supercritical water extraction of lignite on appropriate conditions.
结果表明，用水萃取褐煤在合适条件下，可得到高的转化率及萃取物产率；
Extraction of oil form pretreated rice bran by supercritical CO2 will decrease its acid value and increase its yield.
米糠经预处理后，用超临界CO2萃取米糠油，使所得油脂中的酸价降低，得率提高。
The extraction procession of Gandujing granules was studied by orthogonal design with dry extract yield and chlorogenic acid as the detective marker.
以干膏得率和绿原酸提取率为考核指标，采用正交设计法对肝毒净颗粒水提取工艺进行考察。
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。
Compared with traditional extract method, ultrasound method could improve the extraction yield and save extraction time of paprika red.
与浸提法比较，超声提取极大地缩短了提取时间，而且收率有明显提高。
It had maximal extraction yield of RCP with optimized technique parameters.
利用优化工艺参数提取红甘蓝色素时，具有最大的提取产量。
Method: the optimizing ultrasonic extraction condition on the basis of extractive yield and flavonoids were determined by orthogonal design.
方法：采用正交试验法，以浸膏得率和总黄酮含量为考察指标，对杭白菊的超声提取条件进行优选。
The resulting sample was separated by capillary electrophoresis. Results The average of extraction yield of amino acids was 99.3%.
结果本法具有操作简单、萃取效率高的特点，平均萃取产率可达99.3%。
In case the modifier contains special molecular structure that facilitates the formation of hydrogen bond, the extraction yield will increase.
夹带剂中易形成氢键的特殊分子结构，可提高萃取率。
Compared with conventional extraction, it was more effective with advantages of short extraction period, higher yield, lower temperature and saving solvent amount.
与常规提取方法相比较，具有溶剂用量少，提取效率高，提取时间短，温度低的优点。
In single factor experiment, the highest extraction yield of ultrasonic extraction is 16.61%, which is higher than traditional extraction.
在单因素试验中超声波提取的粗阿拉伯半乳聚糖最高提取率为16.61%，比传统浸提法高。
The residual corn endosperm after the extraction was used for ethanol fermentation, and the ethanol yield of starch achieved 53.40 %, little higher than that of the contrast group (53.04 %).
将提取醇溶蛋白后的玉米胚乳残渣进行酒精发酵，淀粉出酒率为53.40%，略高于对照试验的53.04%。
Under these conditions, the extraction yield of single - stage extraction is 56% and that of four - stage extraction is over 98 %.
在最佳工艺条件下单级萃取率为56%左右，四级萃取率可达98%以上。
With the raw material of waxy corn, this test applies the technology of wet milling extraction to get pure waxy corn starch with high starch yield and fine quality.
以糯玉米为原料，采用湿法提取淀粉工艺，制得淀粉得率高、质量优质的纯净糯玉米淀粉。
Conclusion microwave technology for oridonin extraction has advantages of rapid extraction, simple operation, saving solvent and higher extraction yield, etc.
结论采用微波萃取技术提取冬凌草甲素，具有提取快速、操作简便、节省溶剂和有效成分提取率高等优点。
It has a promising profit that extraction of biological molecule by reversed micellar, for the more mild operational condition, higher extraction yield, lower cost and solvent recycling.
反胶束萃取技术具有条件温和，萃取效率高，成本低，溶剂可重复利用，不引起萃取物变性等优点，用于纯化生物物质前景广阔。
The effect of temperature, time and phase volume ratio on the extraction yield of cytochrome C is discussed.
研究了提取时间、温度、相体积比以及助提取剂用量对提取率的影响。
To develop the technology for extracting alkali - soluble rice bran polysaccharide (ASRBP), the effects of temperature, time and pH on the extraction yield of ASRBP was investigated.
本文研究了不同提取温度、提取时间和碱摩尔浓度对碱溶性米糠多糖提取得率的影响。
The effects of different temperature, time and the ratio of solid to solution on the extraction yield of Ganoderma lucidum polysaccharides (GLP) were optimized with response surface methodology.
本研究采用响应曲面法对影响GLP提取率的三个主要影响因素即提取温度、提取时间和液固比进行了优化。
The effects of various factors on extraction yield are studied, and suitable technical conditions are determined.
研究了各种因素对萃取率的影响，初步确定了较适宜的工艺条件。
The results showed that extraction with acid was superior to extraction with hot water from the view of yield, but it was time-consuming.
从提取率方面来看，酸法提取明显优于热水提取，但提取工艺相对较繁琐。
Methods Taking the dry extract yield and baicalin as the detective marker, the orthogonal experiment was applied to optimize the extraction condition of Fulexin Oral Liquid.
方法采用正交试验法，以干浸膏得率和黄芩苷提取率为考核指标，对福乐欣口服液制备工艺进行考察。
Objective: To establish the relationship equation of yield and extraction time of plant volatile oil.
目的：建立植物挥发油提取量与提取时间关系式。
The experiment result expressed that quality and yield of product by this method is better than by traditional extraction.
实验结果表明，微波辅助浸提离子交换法较传统的浸提法在产品质量和收率上均有明显提高。
The experiment result expressed that quality and yield of product by this method is better than by traditional extraction.
实验结果表明，微波辅助浸提离子交换法较传统的浸提法在产品质量和收率上均有明显提高。
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