提取

Then repeat the progress,and the solvent is formed,then repeat the circle-extraction to concentrationfor several times until the extracting solution is achromatism,at this time,the extracting solution is stopped to stopped to sunction into the concentrator.

重复上述过程，从而形成的溶剂经提取-浓缩大循环经返多次后，提取液呈无色，此时，提取液停止抽入浓缩器。

Then, acid precipitation method and chilled alcohol precipitation method were applied to extract sericin.

采用酸析法和低温乙醇沉淀法对粗粉末中的丝胶进行提取，结果表明：低温乙醇沉淀法的提取率较高，采用体积分数为75%的乙醇溶液提取率达到64%。

In this thesis, the theory, algorithm and applications combined with the project "research on the feature extraction and analysis of XX acoustic vector" are discussed, according to the present development, main problems and practical needs in application of feature extraction of pressure and acoustic vector signals.

本文根据声压和声矢量信号特征提取的研究现状、存在的主要问题以及工程实际应用的基本要求，结合基金项目"XX声矢量特征提取与分析研究"的内容，对目标特征提取及其分类识别进行了理论、算法与应用方面的探讨。

Thismethod adopted affine transformation model and a Lie derivative-based analytical algorithm.We introduced the process and characters in extracting information of biological visionsystem, studied the feasibility of the generalized Gabor function used as receptive fieldfunction in extracting information and analyzed affine transformation group and Liederivatives. Finally, we deduced the mathematical denotation for Lie derivatives, i.e. theinfinitesimal generator of the geometric distortion in affine transformation.

对生物视觉信息提取的过程及特点进行了介绍，其中主要研究了广义Gabor函数作为感受野函数提取初级视觉信息的可行性；对仿射变换作为外界图像信息在视觉成像系统上的投影模型的原理进行了初步讨论；对Lie变换群微分算子用于提取仿射变换不变量的分析方法作了剖析，并推导了该方法中关键部分——仿射变换Lie微分算子的具体表达式，也就是几何变形无限小微分算子的计算表达式，使下一步编程实现该方法成为可能。

In order to get a new technology of extraction of onion essential oil, 2L apparatus of subcritical water extraction suitable for industrial production was designed. SWE of onion essential oil from red onion of Lingnan characteristics was studied.

为获得提取洋葱精油的新提取技术，设计了适合工业化应用的2L亚临界水提取装置；选用具有岭南特色的红葱头为原料进行了亚临界水提取洋葱精油的研究。

Instant tea effervescent tablet, a kind of solid drink prepared by granulating, drying, and tablet processing using instant tea , citric acid and NaHCO3 as main the raw materials was described in this paper.

本文探讨超声波技术在速溶茶提取工艺的应用，针对与超声波提取效果直接相关的几个主要因素(超声波频率、提取时间、温度、料液比、次数)做单因素实验，并得到最佳提取工艺参数。

The effects of extraction solvents and extractions times were investigated and the best extraction conditions have been established.

论文中分别对液固提取的提取液种类、提取次数进行了讨论，并确定了最佳的提取条件。

Methods In this paper, samples of inkpad seals were printed on 4 different kinds of paper with 6 different brands of inks. The strong and weak extraction reagents were selected in the experiment of the double solvent extraction method. The size of slit and scan wavelength were measured, and the relation curve of the extraction percentage of inks with time was drawn.

选用6种不同品牌的印泥和4种纸张分别制作印泥印文的历时性样本，通过实验确定适用于双溶剂提取法判定印泥印文形成时间的弱提取剂和强提取剂；确定薄层扫描时狭缝的大小和扫描波长；绘制盖印时间与提取率的关系曲线。

The optimum conditions of refluxing Temperature: 70℃, Ratio of material and fluid: 1:18, Extracting time: 40min.

回流提取最佳操作条件为：提取温度70℃，提取料液比为1：18，提取时间为40min。

In this work, the ionic liquids was used as the microwave absorption medium and an ionic liquid-non polar solvent microwave extraction method was developed. The proposed method was applied to the extraction of the chemical constituents from the root of Panax ginseng C.M.

以离子液体作为微波吸收介质建立了离子液体-非极性溶剂微波提取法，对人参中的化学成分进行了提取，并将该法与固体微波吸收介质-非极性溶剂微波提取法、极性溶剂微波提取法以及混合溶剂微波提取法进行了对比。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失