阻碍

The internal stress and defects decrease with the increase of heat treatment temperature and this makes magnetic domains wider and more orderly but the carbides containing Ti precipitate along the grain boundaries which cause local components and structure heterogeneousness in these areas .

热处理温度越高，组织内应力和缺陷的减少使得磁畴的排列越来越整齐，磁畴宽度也越大，但晶界附近少量含Ti碳化物析出，导致局部成分和结构的非均匀化，不仅使得该区域磁畴细化，而且阻碍了畴界的移动，从而影响了阻尼性能的提高。

The effects of different factors on the laser-induced graft polymerization on the PET surface were analyzed, and the mechanisms were discussed. The factors were: 1 Monomers with smaller molecules resulted in better modification than polymeric monomers. Acrylamide monomer was chosen as hydrophilic modifier finally; 2 Higher concentration of the monomer solution favored the graft reaction; 3 With the increasing laser fluence, the surface hydrophilicity of PET films increased at first, then decreased. More laser pulses led to a more hydrophilic surface; 4 Benzophenone as a photosensitizer hindered the graft polymerization; 5 The homopolymer retardant of ammonium iron sulfate hexahydrate in a proper concentration retarded the formation of homopolymers and promotes the graft copolymerization; 6 The solvent of monomer solution also affected the graft reaction. Different solvents functioned in different ways. Ethanol can promote the graft reaction because of the activity of hydrogen in its structure; 7 pH value of the monomer solution affects the polymerization rate, and a lower pH value was favorable to the graft reaction.

这些影响因素的作用分别为：1小分子单体的表面改性效果好，确定以丙烯酰胺为亲水性改性单体；2较高的单体溶液浓度有利于接枝反应；3激光能量密度增大，薄膜表面亲水性先显著增强，后又减弱；激光脉冲次数越多，改性后表面亲水性越强；4光敏剂BP对PET表面接枝聚合反应有阻碍作用；5适当浓度的均聚物抑制剂六水合硫酸铁铵能减少单体均聚物的生成，促进接枝聚合；6单体溶液的溶剂也影响接枝聚合的反应进程，不同溶剂的影响作用原理不同，含较活泼氢的乙醇能促进接枝反应；7溶液pH值影响单体聚合速率，pH值较低有利于接枝反应。

"Various laws present barriers to adoption of health IT, and at the time of our review, HHS' efforts to address these barriers had been limited in scope," the GAO report concluded.

GAO的报告还指出，"许多法律条款阻碍了卫生信息系统的采用，在我们回顾的时候，美国卫生和福利部在解决障碍方面做出的努力从范围上看是有限的。"

The source is the key to the action in teaching ,and it carries information in propagating.at present, there are many problems in practice ,and it hider ineffectivly process and spread in development .such as the need is less than supply .ineffective unbalance development in eara .repetion in development etc.

教育资源是教学活动中的关键因素，是教育传播的信息载体。目前，我国教育资源建设在具体运用中相继暴露出很多问题，大大的阻碍了教育建设事业的进程和知识传播的高效性。具体存在的问题有：供不应求、利用率低、区域建设不平衡、资源建设的高重复性等。

Sentimentality and magniloquence can only hider the pursuing the truth.

感情用事和夸夸其谈只能阻碍对真理的追求。

At present, Managemnt work in our university is still not perfect. It is hard to be accurate and inerrant about Some basis data transformation and management. Many work still stay at the stage of manual operation,which hider the information publish and communication between departments and user,superrior and inferior within departments, which would be difficult to adapt to the need of development at network era.

目前，我校房产管理工作还很不完善，一些基础数据传输与管理很难做到准确无误，很多工作仍然停留在手工操作阶段，阻碍了部门内部上下级之间、部门与用户之间的信息发布与交流，难以适应网络时代发展的需要，给管理工作带来了不便。

Being sentimental and high-sounding only hinders the pursuit of truth.

感情用事和夸夸其谈只能阻碍对真理的追求。

Himmler was determined to do all he could to hamper the inevitable take-over of Europe by the Communists.

希姆莱被确定，他将尽一切可能阻碍必然接管欧洲共产党人。

With the development of the society, these problems will hinder the development of English teaching and learning.

随着社会的进步，这些问题将阻碍英语教与学的发展。

This, in turn, can hinder development of both mind and body.

这会阻碍身心的发展。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。