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Now products commonly used bibasic emiting material, its size is not a single material, but is an interval, select the screen at the same time bearing in mind that should be made to the bottom of the fluorescent material manufacturers.

此刻不销物个别搁置二代不收亮质料，其料径不是单一的，而是一个区间，所以在拔取丝网时给夺纲，同时答向厂家底部不收亮质料的参数。

The study at the undergraduate stage will provide students with strong backgrounds in theoretical fundamentals and systematic expertise of materials science and engineering, help students learn about the trend of development in this field, master necessary experimental and computational methods, skills, and have a good command of a foreign language, educate students to develop engineering problem solving skills or enable them to develop new materials, products, processes, and equipment, and capacitate them to sort out problems in practical applications by methods of analyzing chemical composition and structure of materials, controlling material manufacturing process and quality, and testing and analyzing material properties, and by techniques of synthesizing materials and processing material products.

学生通过本科阶段的学习，牢固掌握材料科学与工程学科理论基础和系统的专门知识；了解本领域的发展动向；掌握必要的实验、计算方法和技术；精通一门外国语；具有解决工程问题或从事新材料、新产品、新工艺、新设备的开发能力；能运用材料化学成份和组织结构的分析方法、材料的制造过程和质量控制方法、材料性能检测和分析方法、材料的改性技术、材料制品的加工工艺和技术等解决实际应用问题。

The strength of rock material has the characteristics of random distribution. Combined with Mohr′s criteria, theory result is acquired to analyse the variation in strength of rock material by use of damage mechanics. By comparing this theory result with a group of experiment data on Carrara marble, it is shown that the damage mechanics model is suitable for describing the constitute property of rock material.

首先论述岩石材料强度的概率统计特性，结合经典的莫尔准则，利用损伤力学理论分析了岩石强度随围压的变化，给出了三轴应力状态下的岩石本构关系的表达式，并与Carrara大理岩在各种围压下的应力-应变曲线进行对比。

Analytical results show that: Anode evaporation rate, which determines mostly the production rate of UFMP, is influenced by the many factors including electric parameters of arc, ambient conditions and material properties et al; Existence and increase of anode ejection can influence the production rate and property of UFMP; It is firstly found and investigated that surface connexity phenomenon of Al anode material. Analyses and calculation show that formation of anode spot and existence of self-magnetic field force play an important part in surface connexity process; Effects of cathode material on prepared UFMP is also experimentally studied and theoretically analysed. It shows that effect of the cathode is inconsiderable under the experimental conditions used in the study. At last, the experimental results found in part one are analysed and discussed in detail.

然后详细分析了电弧与电极间的相互作用过程，结果表明：决定超微粉产率的阳极材料蒸发率受许多因素影响，它主要与电弧电参量，环境条件及材料性质有关；阳极表面液滴喷溅的存在和加剧将严重地影响所制超微粉的产率和性质；首次发现和实验研究了Al阳极表面凸起现象，并对此现象进行了详细的理论分析和实际估算，认为阳极斑点的形成及自磁场作用力的存在在该过程中起着重用作用；实验研究和理论分析了阴极材料对所制超微粉的影响，认为在本文所用实验方法及条件下，阴极材料对粉的影响很小。

There are some grass seeds recommended for ecological restoration , for example, Kentucky bluegrass, ryegrass, coronilla, festuca arundinacea, sword-bamboo and euonymus fortunei.3Regarding JBA,YQS, and CXL fertilizer as addition agent of the ecological material, magnetic fertilizer as ecological fertilizer, the material take on character such as water holding capacity, fertilizer retaining, prime cluster structure and binding power, which realize the destination of ecological protection of the abrupt rock slope.4Ecological material protection slope techniques, which is suitable for abrupt rock slope in high-cold area, has been formed elementarily.

高寒地区生态护坡的草种应选用具有抗寒、抗贫瘠和适宜粗放管理的冷季型草种，推荐使用的川西高寒地区生态护坡植物种属为：草地早熟禾、黑麦草、小冠花、高羊茅的草种组合，剑竹灌木种，以及小叶扶芳藤藤蔓植物种。(3)适当配比的高分子材料JBA、YQS和生态肥料CXL作为生态基材的添加剂可使基材具有保水、保肥、优质团粒化和粘结性能，从而达到生态护坡的目的。(4)开发了JYC生态护坡基材，初步形成了一套适合川西高寒地区岩质陡边坡生态基材防护的技术方法体系。来源：Ac9BC论文网www.abclunwen.com

There are three primary types of wear:(1) abrasie, in which the harder of the surfaces produces grooes in the softer material,(2) adhesie, in which the softer material is transferred as a thin film onto the harder surface, and (3) fatigue, in which repetitie loading produces subsurface cracks and particles, or sheets of material subsequently delaminate and are lost from the surface.

磨损主要有三种类型：1、研磨，硬质表面在软质材料上造成沟槽；2、粘着，软质材料形成薄膜移覆于硬质物体的表面；3、疲劳，反复负载造成材料表面断裂及颗粒形成，或材料出现层裂并从表面脱落。

The experiment confirms that the Al2O3/Cu composite material by internal oxidation of deeply aluminized pure copper matrix is a kind of superiority diathermanous copper material as being the metallurgical equipment material.

将纯铜深层渗铝内氧化A12O3/Cu复合材料的性能与纯铜深层渗铝固溶时效合金的性能进行对比，确定纯铜深层渗铝内氧化A12O3/Cu复合材料作为冶金设备用传热铜材料的性能的优越性。

As one new rising mode of the economy development that according to the natural ecosystem material circulation method, circular economy requests the enterprise follow the ecological regulation, reasonable use the natural resources and the environment capacity, develop the economy on the foundation that the material continuously and circularly using, make the economic system brought into in the material circulatory process of the natural ecosystem harmoniously and carry out the economic activity ecotypically.

循环经济作为近些年兴起的按照自然生态物质循环方式进行的经济发展模式，要求企业遵循生态学规律，合理利用自然资源和环境容量，在物质不断循环利用的基础上发展经济，使经济系统和谐地纳入到自然生态系统的物质循环过程中，实现经济活动的生态化。

According to ecumenic air filtration material appraised quality criterion and the characters of electret air filtration material , this paper discusses the qppraising criterion of the electret air filtration material .

本文从一般空气过滤材料的质量评价指标出发，结合驻极体空气滤材的特点，初步探讨了驻极体空气滤材的质量评价指标。

According to ecumenic air filtration material appraised quality criterion and the characters of electret air filtration material the appraising criterion of the electret air filtration material is discussed .

从一般空气过滤材料的质量评价指标出发，结合驻极体空气滤材的特点，探讨了驻极体空气滤材应有的质量评价指标。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。