分离压力升高，萃取率呈下降趋势。
The higher separating of pressure was, the lower the rate of extraction was.
萃取率的上升是因体系物理性质发生变化而造成。
It is the change of physical properties of system that makes the extractability increase.
多级逆流或错流萃取的萃取率明显高于单级萃取。
Both the extraction ratios of countercurrent multi-stage extraction and cross current multi-stage extraction were higher than single-stage extraction.
采用该工艺方法大蒜素的总萃取率可达61.2%。
精油萃取率与萃取压力、萃取时间呈对数函数关系。
The extracting rate of the essential oil was logarithmically increased with extracting pressure and time.
夹带剂中易形成氢键的特殊分子结构，可提高萃取率。
In case the modifier contains special molecular structure that facilitates the formation of hydrogen bond, the extraction yield will increase.
锂的萃取率随离子液体中烷基碳原子数的增加而增加。
With increasing number of carbon atom of alkyl group in the ionic liquid the extraction efficiency of lithium obviously increased.
上述技术的研究重点集中于集成化、快速和高萃取率。
Those techniques were mainly focused on integration, fast and high extraction efficiency.
研究了超声振荡技术应用于乙酸萃取硅灰石时的钙离子萃取率。
The use of ultrasonic vibration in acetic acid extraction of Ca2+ from wollastonite increased obviously the extraction ratio of Ca2+ ion.
采用低频超声波处理大豆浆体以提高其蛋白质和固形物的萃取率。
Soybean slurry was processed by low frequency ultrasonic for enhancing the extraction rates of proteins and solids.
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 effects of various factors on extraction yield are studied, and suitable technical conditions are determined.
研究了生物基质对有效萃取目标检测物的影响及提高萃取率的途径。
The influences of the biological matrix on selectively extraction of the target analytes and the strategies for increasing the extractivity were studied.
研究结果认为：在磁场作用下稀土的萃取率稍有升高，萃取机理不变。
The data illustrated the extractability was slightly increased in the magnetic field, which could be explained by the same extraction principle.
萃取过程中，影响锌电积或锌产品质量的杂质基本上不被萃取或萃取率低。
The impurities, which can affect on zinc electrolysis process and zinc product quantity, cannot be extracted or extracted lowly.
结论与水蒸汽蒸馏法相比较，超临界萃取法具有萃取率高、耗时少等优点。
ConclusionCompared with steam distillation, the supercritical carbon dioxide extraction showed many advantages, such as short extraction time and high extraction yield.
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。
Under these conditions, the extraction yield of single - stage extraction is 56% and that of four - stage extraction is over 98 %.
以谷糠油萃取率为考察指标，对超临界二氧化碳提取谷糠油的工艺条件进行研究。
With the extraction rate from millet oil bran as indexes, the process conditions for extracting millet bran oil by supercritical carbon dioxide was studied.
选择合适溶剂、提高萃取温度、热萃取前加酸预处理等方法均可提高煤的萃取率。
The coal extraction rate could be increased with the suitable selected solvent, the increased extraction temperature, the acid pre-treatment before the thermal extraction and other method.
实验结果表明，电场强度的增大可以有效地提高溶质的萃取率，传质通量也随之增大；
The experimental results showed that the extraction rate and mass transfer flux increased with the field strength increasing.
试验结果表明：混合溶剂对废水中的醋酸有较高的萃取率，反萃取效果为98.4%。
Results show that the mixed solvent can give high distribution extraction rate for acetic acid wastewater. Back extraction rate was 98. 4%.
如按假设容许参数及设计方案计算的话，A区测定资源的平均矿体萃取率有望达31.7%。
The average Mass Extraction Ratio of the measured resources in Area a is expected to be at 31.7% for assumed permissible parameter and design layouts.
将回收的反胶束再次用于萃取试验，胰蛋白酶总萃取率达到19.8%，比活力纯化倍数为2.8。
The recycled reversed micelles were reused and the results show total extraction rate is 19.8% and trypsin specific activity is 2.8 times.
在自行设计的连续电泳萃取池内实验研究了电场强度、两相流速等因素对丁醇萃取率及传质通量的影响。
The effect of electric field strength and two phase velocity on mass transfer characteristics in the separation process was studied in an electro-extraction equipment.
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。
This article introduces experiment principle, main factors influencing on the extraction yield of formaldehyde and methods suitable for testing free formaldehyde in latex.
通过对PMEW萃取分离发现，在甲醇水、氯仿、石油醚和乙酸乙酯四种萃取物中仍以甲醇水的萃取率最高。
In four extracts from PMEW treated with methyl alcohol and water, petroleum ether, chloroform and ethyl acetate, extract rate of methyl alcohol and water was the highest.
从而展示了SFE作为绿色化学技术具有萃取率高、使用溶剂少，分离步骤少，环境无害等明显优于传统方法的特点。
SFE as a green chemical technology offers better recoveries, less solvent consumption, less sample handling steps, cleaner extracts and environmentally friendly to conventional technology.
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 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.
用顶空萃取法对水中低级芳烃化合物进行了萃取实验，考察了此高聚物涂层的热稳定性及单体比例与萃取率的关系。 收藏。
The thermal stability of the polymer coating and the relationship between the styrene ratio and the extraction efficiency were investigated.
用顶空萃取法对水中低级芳烃化合物进行了萃取实验，考察了此高聚物涂层的热稳定性及单体比例与萃取率的关系。 收藏。
The thermal stability of the polymer coating and the relationship between the styrene ratio and the extraction efficiency were investigated.
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