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This study aimed at the problem of low content of protein in plant tissue, low solubility of some components in amphoteric electrolytes and the disturbance of secondary metabolites such as chromatophore, phenols and quinones to the separation of two-dimensional electrophoresis.

针对植物组织蛋白质含量较低，有些组分在两性电解质中的溶解性低以及绿色组织中的色素、酚类、醌类等次生代谢产物干扰蛋白质双向电泳分离效果的问题，以玉米苗期叶片为材料，对蛋白质裂解液、蛋白质浓度测定体系、等电聚集电泳电压和时间、聚丙烯酰胺凝胶浓度等技术参数做了改进。

This paper summarized the characters and acting principles as well as the application of low temperature plasma technology on the surface modification of protein biomaterials, and forecasted their applied prospects. Especially it make mention of improved absorption and combination of chrome in leather processing by low temperature plasma on the surface modification of collagen fibrils, that it may come into being a new technology of free-chrome.

概述了低温等离子体的特点和作用原理，并总结了低温等离子体技术在蛋白类生物材料表面改性中应用，展望了该技术的应用前景，特别指出了通过低温等离子体对皮胶原纤维的改性处理，有望提高铬的吸收与结合，甚至实现无铬鞣制新技术，这将对传统铬鞣工艺产生重要作用。

In view of practical problem during Sulige gas field development, this paper complete follow study content. Study material balance theory of two district compound gas reservoir. Carry out stress sensitivity experiment on matrix rock and labor created fracture core from Sulige gas field with America Core Company high pressure high temperature flow experimental instrument to study stress sensitivity change rule of different permeability matrix rock and created fracture core at the condition of time and again switch on and off well and different drawdown pressure. Carry out depletion experiment on matrix rock of different permeability serial combination with different kinds of allocation, using double core clamper serial connected experimental apparatus, to study gas well production performance of bi-zonal compound low permeability reservoir during low pressure production stage. At the basis of experimental study, establish single well simulation model to analyze development index infection caused by stress sensibility and production performance infection rule caused by inner formation and outer formation of bi-zonal compound gas reservoir permeability variation while considering stress sensitivity.

针对苏里格低渗气田开发中存在的实际问题，完成以下研究内容；研究了两区复合气藏物质平衡原理；利用美国岩芯公司高温高压流动实验仪，对取自苏里格气田基质岩芯和人工造缝岩芯进行应力敏感实验，研究不同渗透率基质岩芯和造缝岩芯在多次开关井和不同生产压差条件下的应力敏感变化规律；采用双岩芯夹持器串联实验装置，对不同渗透率串联组合的基质岩芯进行各种配产条件下的衰竭实验，研究两区复合的低渗储层气井在低压生产阶段的生产动态特征；在实验研究的基础上，建立单井模拟模型分析储层应力敏感性和非均质性对开发指标的影响，研究考虑应力敏感时两区复合气藏储层中内区和外区渗透率变化对开发动态的影响规律。

In some areas, the school authority gives less significance to the subject reformation including arts. There are a lot of problems existing not only in limited class frequency, teaching resources and latest information, but also in poor salary, low rank of teaching faculty, low scientific and research level of art and new course training have not received a good result. Under this circumstance, the development of basic art education has been badly affected, and at the same time, the quality of human's foil and harmonious development has been destroyed.

由于甘肃经济条件的制约以及长期以来形成的教育观念的问题，在基础美术教育阶段，有些地区学校领导对课程改革和美术学科其重要性认识不够，美术开课率不足、不齐、美术教学资源缺乏、美术教育信息闭塞、美术教师待遇、职称落后，美术科研水平偏低，美术新课程培训形式化，这使得美术教师的教学信念不强，工作热情减低，学生学习的积极性也不够，这些问题的存在严重影响了甘肃省基础美术教育可持续发展，影响了人的全面和谐发展的素质教育要求。

Three classes of equivalent system methods which are used in finding high order flight control systems low order equivalent are studied. The first class methods are the classical frequency domain-based equivalent system methods which recommended by MIL-F-8785C and MIL-STD-1797A. Five longitudinal low order equivalent systems and fourteen lateral ones are discussed in detail and some pieces of advice are given. Also conduct an investigation in the time domain-based equivalent system methods .

研究了求取高增稳飞机的低阶等效系统的几种方法：研究了经典的频域等效系统方法，针对纵向5种、横向14种构型的低阶等效系统进行了拟配实践，并提出一些有益的看法；以频域等效系统方法为基础，提出了时域等效系统新方法；以最小二乘辨识为基础，提出了两种纵向短周期低阶等效系统时域辨识方法(等效延迟时间τ_q参与或不参与)。

Basic Low （ A2）: This classis designed to help move you to your next level , Medium intensity low impact class .

这是一节中级强度且专为改变你并带领你向更高级别的低冲击有氧操过程的课程。

Gas hydrates are defined as the crystalline solid, or clathrate hydrates, which are formed by some types of low mass molecular gases, such as methane, carbon dioxide, and hydronitrogen et al, with water under relatively high pressure and low temperature conditions.

天然气水合物是一些具有相对较低分子质量的气体如甲烷，二氧化碳、氮气等在一定温度和压力条件下与水形成的内含笼形孔隙的冰状晶体。

If LE is low, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK.

如果LE是低，数据存储在一个闩锁/触发器对时钟低到高的转换失败。

Therefore, we can select low dose and low frequency (2 IU/2 times) and supplemented hCG with cloaca (eg. vagina suppository) for abate invasive therapy in the clinical apply.

因此，我们可以选择於泄殖腔给予低剂量、低频率(2IU/2次)并且额外补充hCG的治疗，可以用於临床上以降低侵入性的治疗。

Because of low mortgage rates, homeowners may also take advantage of no or low closing cost refinancing.

由于低抵押贷款利率，业主也可利用没有或关闭低融资成本。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。