It is considered that the gas pre-extraction measure in coal bed is one of the most effective methods to prevent the gas disaster.
目前，本煤层瓦斯预抽放措施仍然被认为是预防瓦斯灾害最有效的方法之一。
The pulping performance of wood chip was improved by hot-water pre-extraction in appropriate time. The pulp strength would degrade if pre-extraction time was too long.
合适时间的热水预处理可使木片具有更好的制浆性能，但预处理时间过长会导致蒸煮后成浆强度下降。
The effects of hemicellulose pre-extraction on eucalyptus fibre morphological characteristics and pulp properties after AQ-NaOH cooking were investigated in this paper.
探讨了半纤维素预提取对桉木纤维形态及碱法制浆后浆料性能的影响。
The present paper reports a rapid method for the determination of furfural (f) and 5-hydroxymethyl furfural (HMF) in pre-extraction liquors of lignocellulosic biomass based on UV spectroscopy.
提出了一种基于紫外光谱快速测定木质生物质预提取液中糠醛(F)和羟甲基糠醛(HMF)的方法。
The method involved solid-phase extraction of insulin from plasma and pre-column derivatization of insulin with fluorescamine.
该方法涉及从血浆中固相提取胰岛素，以及用荧光胺对胰岛素进行柱前衍生。
In the pre-processing module: realization of sample extraction, concentration, purification integration, each can process six samples.
前处理模块：实现样品提取、浓缩、净化一体化，每次可处理六个样品。
The conditions of pre process such as extraction, evaporation, and column separation of sediment samples are optimized.
对沉积物样品的预处理中抽提、蒸发、柱层析、萃取等步骤条件进行优化。
The paper introduces the process of voice pattern recognition, including the method for pre-processing, extraction of feature and classification of pattern.
该文主要介绍了在声音模式识别的一般过程，其中包括声信号预处理、特征提取、模式分类过程的方法。
Functionally, a robot vision system contains the following processes: the obtaining of digital image, the image pre-processing, character extraction and image identification.
机器人视觉系统主要包括数字图像的获取、图像的预处理、特征提取和图像识别几部分。
This pre - treatment led to a significant increase in extraction efficiency.
这种预处理可明显地提高超临界流体萃取的效率。
The original gray level image was changed into the macroscopical drawing information by pre-processing, threshold selection, image bivalency, edge detection and contour extraction and segmentation.
对原始数字图像实施预处理、二值化、轮廓提取及细化等处理后，将图像信息转变成宏观图形信息。
The fingerprint recognition system mainly concludes the following steps: collection of fingerprints, pre-processing of fingerprint image, minutiae extraction and fingerprint matching.
自动指纹识别系统主要包括以下几个步骤：指纹图像采集、指纹图像前处理、细节特征提取、指纹图像匹配。
This dissertation mainly focuses on two issues of form document recognition: pre-processing and character extraction.
本文主要讨论表格识别中的两个问题，即表格识别预处理技术与表格字符提取算法。
For solving the problems of soybean oil extraction using 95% ethanol as solvent, a new oilseed pre-treatment method was proposed.
为解决95%乙醇浸出大豆油工艺中的几个难点，探索了新的油料预处理方法。
The corrosion of heat exchanger tubes in extraction system, pre-treatment system and reforming system are described in detail.
文章详细阐述了催化裂化重整车间抽提系统、预加氢系统、催化重整部分换热设备管束腐蚀情况。
Fingerprint identification can be divided into three processes: fingerprint image pre-processing, feature extraction and fingerprint match.
指纹识别主要分为指纹图像预处理，特征提取，指纹匹配三个步骤。
The SPD R&D includes five modules: SPD bias voltage, pre-amplification, avalanche signal extraction, temperature control and digital control circuit.
将单光子探测器的研制分为偏置电压、前置放大、雪崩信号提取、温度控制和数字控制电路五个模块。
In this thesis, we study on text detection. It includes five parts: pre-process, multi-scale analysis, feature extraction, classification and text area extraction.
本文针对文本区域提取这个问题来进行研究，包含预处理、多分辨分析、特征提取、分类(检测)、区域提取五个步骤来解决文本区域的准确提取问题。
In order to improve the accuracy rate of recognition of handwritten number, the researchers have done a lot of work at the pre-processing stage, feature extraction and classification stage.
为了提高手写数字的识别率，研究者在预处理阶段、特征提取和分类识别阶段都提出了很多方法。
METHOD the plasma samples were pre treated using simple liquid liquid extraction with NR 762 as the internal standard.
方法以NR 762为内标，血浆样品经简单的液液萃取后进行检测。
The second chapter introduces the plastic packaging Ham phthalate plasticizers in the pre-treatment methods, including extraction and purification methods.
第二章详细介绍塑料包装西式火腿中邻苯二甲酸酯类增塑剂的前处理方法，包括提取及净化方法。
The third chapter describes the problems in text processing of Chinese medicine and corresponding solutions, it includes text pre-processing and relationship extraction based on association rules.
第三章介绍了在中医药文本处理面临的主要问题以及相应的解决方法，包括文本预处理和基于关联规则的关系抽取两个部分。
A method for the spectrophotometric determination of trace Cu 2+ with flow injection liquid liquid extraction separation and pre concentration was developed.
用自制的分相器与流动注射仪联用，对有机相析出液- 液萃取光度法测定微量铜的流路参数和操作程序进行优化。
Image analyses on cotton fibre maturity consists of image pre-processing, extraction of contour and parameters detection.
棉纤维成熟度的图象分析包括输入图象的预处理，纤维轮廓的抽取及参数检测。
Generally speaking, the face recognition system consists of face detection. feature piont location, image pre-processing, feature extraction and face recognition.
一般来说，人脸识别系统包括人脸检测、特征点定位、图像预处理、人脸特征提取以及人脸识别。
With less manual intervention the method doesn't need image feature point extraction and pre-processing of the classification of organizations and only rely on the image information.
该方法人工干预少，不需要图像特征点的提取以及组织分类等预处理，只依赖于图像本身信息。
As sample pre-treatment technology, SPE (Solid Phase Extraction) is more and more popular used in Labotory.
固相萃取作为样品前处理技术，在实验室中得到了越来越广泛的应用。
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.
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。
After samples were pre-digested, trace cadmium was concentrated by non-ionic surfactant cloud point extraction and determined by the graphite furnace atomic absorption spectrometry.
样品先经消解，再以非离子表面活性剂浊点萃取富集消解液中的镉，石墨炉原子吸收光谱法测定镉含量。
After samples were pre-digested, trace cadmium was concentrated by non-ionic surfactant cloud point extraction and determined by the graphite furnace atomic absorption spectrometry.
样品先经消解，再以非离子表面活性剂浊点萃取富集消解液中的镉，石墨炉原子吸收光谱法测定镉含量。
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