材料

At the aspect of the fade and the average wear, the bakelite modified by the chemigum was better than the bakelite modified by the bunas; When mixing the kevlar fiber and steel fiber their"cooperation effect"happened easily, especially, in the proportion of one to four, the friction materials had the better tribology performance; It was demonstrated that Sb2S3 played a role of binding adhesive of friction materials in high temperature, which could reduce the content of the agglomerant, but it was a higher price material, mixing the petroleum powder and CuS in appropriate proportion would replace it in friction

应用造粒技术，采用颗粒包层的方法，改变摩擦材料内部结构，使摩擦材料由配方比例设计到配方与结构综合设计的转变成为可能，将为研制新型摩擦材料探索出一条新的思路。

The status and application of AGRIN lens are introduced. Its merits comparing with the aspherical lens are briefly presented. The manufacture technology of AGRIN medium is discussed.

综述了AGRIN材料的发展历史，现状及其在镜头设计中的应用，简述AGRIN材料在光学设计中的应用和它与非球面相比的优点，探讨AGRIN材料的制造问题。

So we don't ignore the effect of inner amortisseur of these materials, these similar materials are called the viscoelastic.

在对大多数这样材料的研究时，我们不再忽略它们的内部衰减的影响，这些材料为粘弹性材料。

Most of melon were andromonoecious, monoecy can not only reduce the hand pollination but also can improve the quality of F1 hybrids than other andromonoecious accessions.

大多数甜瓜是雄全同株材料，而雌雄异花同株材料除了在育种过程中能减少大量复杂的去雄工序外，其F1果实发育也要强于雄全同株材料。

The method includes the following steps: depositing a non-magnetic layer (3) of sufficient thickness; anisotropically etching the non-magnetic layer to form a steep wall of suitable dimensions at the required position of a flux guide; depositing a magnetic material to form a magnetic layer (9) on the wall in such a manner that the magnetic layer has a thickness corresponding to the required track width; removing undesired deposits of magnetic material but maintaining the magnetic layer on the wall; depositing an insulating material (19a) to cover the magnetic layer.

该方法包括下列步骤：淀积足够厚度的一个非磁层(3)；非均质地蚀刻该非磁层以便在磁通引导的要求位置形成适宜尺寸的阶跃内壁；淀积一个磁性材料，以便在该内壁上形成一个磁层(9)，使得该磁层具有对应于该要求的磁迹宽度的一个厚度；去除不希望的淀积的磁性材料而保持在该内壁上的磁层；淀积一个绝缘材料(19a)以便覆盖该磁层。

Of discharge capacity at the first cycle after 20 cycles. At the same condition, the uncoated MCMBs just keep 74. 6% of the first discharge capacity. Cu coating have the same effect as the Ag coating about sensitive to humidity, but the coated Cu is easily oxided on air. Cu-Ag alloy is provided with normal temperature antioxygenic property in air.

从动力学角度出发，提出电极放电行为的理论模型，根据材料的基本性能来计算锂嵌入和脱出的反应过程，根据该模型对材料的放电曲线、锂在材料中的扩散系数和交换电流密度进行模拟和计算，并且得到了和实验结果的一致性。

Cu coating have the same effect as the Ag coating about sensitive to humidity, but the coated Cu is easily oxided on air. Cu-Ag alloy is provided with normal temperature antioxygenic property in air. The coated MCMBs still have excellent electrochemical performance after being held at high humidity.

从动力学角度出发，提出电极放电行为的理论模型，根据材料的基中南大学博士学位论文摘要本性能来计算铿嵌入和脱出的反应过程，根据该模型对材料的放电曲线、铿在材料中的扩散系数和交换电流密度进行模拟和计算，并且得到了和实验结果的一致性。

Based on thecluster analysis and PCA,the 23 germplasm materials investigated may be divided intotwo groups,most of genetic variation was within group.There was a certain relationshipbetween genetic distance and geographic distance among Arrhenatherum elatius L. in theresearch.

基于ISSR标记的UPGMA聚类分析与主成分分析表明，23份高燕麦草种质材料能按照采集地点的不同分为两大组，组间遗传距离的差异是导致供试材料整体遗传差异较大的主要因素，而组内材料间亲缘关系较近，地理距离与高燕麦草的遗传距离有一定关系。

2Under salt stress, the osmoregulation system, membrane system andphotosynthetic system of Arrhenatherum elatius L. were damaged. The materials ofstrong salt-tolerance have high levels of proline content, sugar content, K~+/Na~+ content,MDA content,CAT acitivy and photosynthesis rate etc..

2供试材料盐胁迫下的生理生理特性研究表明：盐胁迫下高燕麦草的渗透调节系统，膜系统及光合系统均受到不同程度的损害，耐盐能力较强的材料ZXY03-367、ZXY03-200等在脯氨酸含量、可溶性糖含量、钾钠含量比、叶片相对含水量、丙二醛含量、CAT活性、光合速率及叶绿素含量方面均高于不耐盐的材料ZXY03-13、ZXY03-443等。

It shows in clinic as tooth sensitivity, pulpitis,periodontitis,food impaction ,deformation of basifacial caused of loss of occlusal height, temporomandibular disorder syndrome, etc. The wear property of artificial tooth material will lead a direct effect to restoration result, when it exists in oral environment. It will cause tooth enamel loss too much in a very short period, if the wear property of artificial tooth superior to tooth enamel; but if it is inferior to tooth enamel, serious wear will occur on restoration occlusions, which will lead to loss of bite functions and even decrease of occlusal vertical dimension, disorder of bite functions, etc. Therefore, it is important to artificialtooth material not only it"s biotic compatibility, mechanical function, chemistry property but also it"s wear property.

当口腔中存在修复体时，人工牙材料的磨耗性能也直接影响临床修复的效果，当其磨耗性能强于天然牙釉质门时，将会引起天然牙釉质过度磨耗；当其磨耗性低于天然牙釉质时，又会在较短时期内引起修复体咬合面磨损过度，失去咬合功能，严重者甚至出现咬合垂直距离降低，咬合功能紊乱等症状因此，对于人工牙材料除了考虑生物相容性、机械性能及化学性能外，还应考虑到材料的磨耗性能，而磨耗率的测定一直是评价天然牙及人工牙磨耗性能的优越指标之一。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！