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Firstly, it is difficult to densify CeO2 based solid electrolyte materials and a sintering temperature above 1600℃is required to prepare dense CeO2 based solid electrolyte materials by the conventional solid-state reaction method;Secondly, doped ceria are brittle materials and have weak mechanical strength, which would be susceptible to fracture due to thermal stresses and mechanical stresses during cell fabrication and operation; Thirdly, electronic conduction will be introduced because of the reduction of Ce4+ under low oxygen partial pressure, which would reduce the output voltage and output power of the cells.

其一，CeO_2基电解质材料难以致密化，用常规的固态反应法制备的CeO_2基电解质粉体需要在1600℃以上烧结才能达到致密化；其二，CeO_2基电解质为脆性材料，机械强度低，使其容易在电池的制造及运行过程中由于热应力及机械应力而破裂；其三，CeO_2基电解质在燃料极一侧由于Ce4+还原为Ce3+出现电子导电，降低电池的输出电压和输出功率，影响电池的性能。

Firstly, it is difficult to densify CeO2 based solid electrolyte materials and a sintering temperature above 1600℃is required to prepare dense CeO2 based solid electrolyte materials by the conventional solid-state reaction method;Secondly, doped ceria are brittle materials and have weak mechanica...

其一，CeO_2基电解质材料难以致密化，用常规的固态反应法制备的CeO_2基电解质粉体需要在1600℃以上烧结才能达到致密化；其二，CeO_2基电解质为脆性材料，机械强度低，使其容易在电池的制造及运行过程中由于热应力及机械应力而破裂；其三，CeO_2基电解质在燃料极一侧由于Ce4+还原为Ce3+出现电子导电，降低电池的输出电压和输出功率，影响电池的性能。

Choosing and purchasing materials, entering and exiting materials in warehouse and using them all have big room to cut product cost, so direct materials are directively affected the product cost among them.

其中直接材料对生产成本有着直接的影响，从原材料的采购、原材料的入库和出库以及原材料的使用上都有很多可以降低生产成本的空间。

Products are widely used in paints, coatings, pesticides, inks and plastics in different sectors, such as S-800, S-1000, S-800, S-1500, S-1800, S-2300 series of aromatic solvents and as the production of advanced insulation materials Durene raw materials, as well as important chemical raw materials naphthalene oil industry.

产品为广泛用于油漆、涂料、农药、油墨和塑料等不同行业的S-800、S-1000、S-800、S-1500、S-1800、S-2300系列芳烃溶剂和作为生产高级绝缘材料原料的均四甲苯，以及重要的化工原料石油工业萘。

China's real estate market strong development momentum of China's building materials market, this piece of "cake" growing in volume, while overseas construction materials "giant" Optional machine have forced the Chinese market, China stepped up the local building materials business,"Pai soldiers embattle."

房地产市场驱动建筑材料建材市场庄家，以处理&外国材料&挑战中国房地产市场发展势头强劲的中国建材市场这块&蛋糕&越来越多的量，而海外建筑材料&巨人&任择机迫使中国市场，中国加强了地方建筑材料业务，&排兵布阵。&

Because of the our country government support in policy and funds, and the need of the development oneself of the building materials industry, the building materials logistics appeared the consciousness of the modern programming and luck camp embryotic, many currently in small building materials business enterprises all value the logistics more and more.

由于我国政府在政策和资金方面的支持，以及建材业的发展自身的需求，建材物流出现了现代规划和运营的意识萌芽，目前许多中小建材企业都越来越重视物流。

Since its estalishment.the company has always upheld the busness idea"Quality First、Outstanding Keeping Credit,Customer Supreme"The main products link four-column pressure forming machine series,flat vulcanizing machineseries.sheet stretcher series,rubber-plastic foamingmachine series,and pressure forming machine series for friction materials are widly applied to pressure processing the formable materials,rubber products.and forming the themoset materials,etc.

企业自创办以来，始终遵循&质量第一、追求卓越、尊信守约、客户至上&的经营方针；经多年创新与不懈努力，具体产品有：四柱压力成型机系列、平板硫化机系列、薄板拉伸机系列、橡塑发泡成型机系列、摩擦材料压力成型机系列等；广泛适用于可塑性材料的压力加工、橡塑制品等熟固性材料的成形。

First of all, it is a elastic wave therefore it can transmit in the most types of materials and it can be used to investigate both their surfaces and their interiors, whereas light can just get through the lucid materials and Hertzian waves is unable to transmit in the conductive materials.

本实验简单介绍超声波的产生方法、传播规律和测试原理，通过对固体弹性常数的测量了解超声波在测试方面应用的特点，通过对试块尺寸的测量和人工反射体定位了解超声波在检验和探测方面的应用。

The organic/inorganic composites, as new materials that combine the inorganic phase"s rigidity,stability and the organic phase"s toughness and workability, have important theoretical and realisticsignificance in materials science. C_(60) is a brand-new holosymmetry spherical molecule with theunique physical and chemical property, displaying wide implications and applications of physics,chemistry, biology, materials science, medicine, electronics, and so on.

有机／无机复合材料集无机相的刚性、稳定性和有机相的韧性、加工性等诸多特性于一体的一类新型材料，具有重要的理论和现实意义。C_(60)是一个全新的全对称球形分子，具有独特的物理、化学性能，已广泛地影响和应用到物理、化学、生物学、材料学、医学、电子学等许多领域。

Those biodegradable materials finally form into CO2 and H2O via culture of tricarboxylic acid cycle, which can be excreted from lung, kidney, and skin. Hydroxyacetic acid is a metabolic product of amino acids. Therefore, velocity of bioldegradable materials can be controlled in vivo. The recent contraception focuses on discover a sustained release system of biodegradable materials.

生物可降解材料包括聚乳酸、聚ε-己内酯、乳酸-羟基乙酸共聚物等，这些材料有很好的生物相容性，植入体内后可经生物降解成乳酸单体，经三羧酸循环后最终成为CO2和H2O，经肺、肾、皮肤排泄，羟基乙酸也是机体氨基酸代谢产物，而且生物可将解材料在体内降解速度是可控的，用生物降解聚合物作为药物载体的缓释避孕系统是目前材料学以及避孕节育研究的一大重点。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。