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The extraction and separation of total alkaloids from Wu-He Dipsacus by continuous extraction are described. Then the analysis of the quantity of alkaloids is carried out by UV method.

采用索氏提取法对不同生长时期的五鹤续断中总生物碱进行提取并分离，探讨用紫外分光光度法测定总生物碱质量分数的方法。

The extraction and separation of total alkaloids from Wu-He Dipsacus by continuous extraction are described.Then the analysis of the quantity of alkaloids is carried out by UV method.Furthermore,the determination method of alkaloids is discussed.

采用索氏提取法对不同生长时期的五鹤续断中总生物碱进行提取并分离，探讨用紫外分光光度法测定总生物碱质量分数的方法。

Personal computer had affluent hand-motion tool, automatic and reciprocation extraction of diremption and extraction. Three-D visualization was very superiority.

应用三维重建方面，通过对比，个人计算机具有丰富的手动分割工具，自动或交互式图像分割与提取等功能，三维重建效果更加优秀，可满足临床需求。

Objective To optimize the extraction process by determing the volatile oil yield of steam distillation and supercritical CO2 extraction from flowers of Elaeagnus angustifolia L..

目的 比较水蒸气蒸馏法和超临界CO2萃取技术从沙枣花中提取挥发油的得率，确定最佳提取工艺。

In the study of extraction of antimicrobial substance from Eleocharis tuberose peel with ultrasonic, on the basis of single factors test and orthogonal test, the optimal technological parameters were material 60 mesh, ethanol 65%,1:10 for ratio of material to liquid, 45min for ultrasonic time, extraction for one time.

超声波法提取荸荠皮中抑菌物质的实验中，通过单因素及正交实验确定的最佳工艺条件为：采用60目的荸荠皮粉碎物、浓度65％的乙醇溶液、料液比1∶10、超声波作用45min、提取次数一次，在此条件下提取物对大肠杆菌和金黄色葡萄球菌的抑菌圈直径分别为13.3mm和14.3mm。

The process of feature extraction is to transform the eradiate noise signal to different feature space and extract the feature vectors that reflect the category of the input sample. The extracted features are the input modes to the classifier. Through the inspecting, the author selected three methods of eradiate noise's feature extraction.

本文作者经过考察，采用了三种前期研究中较为有效的水下目标特征提取方法——基于功率谱估计的线谱特征提取方法、基于小波分析的不同频段内能量特征提取方法和基于水声信号分维特性的特征提取方法。

objective:to study the microwave assisted extraction process for active ingredients in erysimum cheiranthoides l..methods:using the orthogonal experimental design,the optimal process of microwave assisted extraction for erysimum cheiranthoides l.

目的研究微波辅助萃取桂竹糖芥的提取工艺。方法通过正交设计的方法，采用连续微波辐射方法进行微波萃取工艺的优化。

MethodsWith the extraction rate of polysaccharides as an examinable target , the optimal extraction conditions of polysaccharides has been proposed by microwave-assisted method through single factor experiment and orthogonal test method .

方法应用微波辅助提取技术，通过单因素和正交实验，以土茯苓多糖提取率为指标，筛选土茯苓多糖的最佳提取工艺条件。

In this experiment, with the leaf of Toona sinensis and the root of kudzu as the material, with the falconoid compound as quality criterion, the affect of dynamic extraction and stationary extraction has been compared, and the affect of the temperature , the ratio of stuff and impregnate, the velocity of whisk and the figure of oar have been investigated.

在本文实验中，以香椿叶、葛根为原料，以黄酮类化合物为质量指标，比较了动态浸取和静态浸取对浸取速率和浸取率的影响，同时研究在动态浸取时温度，料液比，搅拌速率以及桨叶型式对浸取速率和浸取率的影响。

The four factors of the orthogonal experiment (L934) were alcohol concentrate, times of farinose herbal medicine, extraction times and time for one extraction.

本文进行了防治鱼类细菌性败血症的中药复方总有效成分的提取、药效及药物代谢动力学研究。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐