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Based on the principle of heat mass analogy,the convective heat transfer coefficient on rolling tire surface was simulatively investigated with a linearly moving rotary disc in a wind tunnel by using naphthalene sublimation technology.

根据热质比拟的基本原理，采用萘升华技术，在风洞中利用直线运动的旋转圆盘模拟研究了滚动轮胎表面的对流换热系数。

It is involved in the synthesis of triphenylcarbinol. In this pater, based on the principle of the ultrasonic wave radiation and its advantages, triphenylcarbinol was synthesized by ultrasonic irradiation. We have researched the influence on the synthesis of triphenylcarbinol for the solvent of different purity.

三苯甲醇的制备中就涉及到了格氏试剂的合成，本文根据超声波辐射作用的原理及其优点，利用超声波辐射法合成了三苯甲醇，考察了不同纯度的乙醚溶剂对产物合成的影响。

In order to change the situation. SPD innovated the traditional theory which brought a great change in its basic value, In term' of just value, it has changed from distribution to chance ;In terms of welfare, SPD claims an active welfare country which is based on the principle of bearing danger and chance together, enjoying right and obligation together; In terms of social management, SPD insist that it should be changed from nationalism which state is responsible for everything to Civil Society which the civics take on their duties first.

20世纪90年代末期上台执政的德国社会民主党接手的是处于危机边缘的福利国家，为了应对困境，德国社会民主党对传统理论进行了革新，基本价值观念发生了重大转变，在公正观念上，完成了从分配公正向机会公正的转变；在福利观念上，主张以风险和机会共担、权利和义务共享为原则的积极福利观；在社会治理观上，主张从国家作为社会治理的首要实施者的&国家主义&向公民是第一责任人的&公民社会&转变。

A virus is a unit of infectious genetic material smaller than any bacteria and embodying properties placing it on the borderline between life and non-life. The vast majority of the virus capsid protein assembled into icosahedral symmetry of the structure. Caspar-Klug Theory has become a fundamental concept for the classification of icosahedral viral capsids based on the principle of quasi-equivalence.

二：病毒是比任何细菌都小的感染性遗传物质，介于生命与非生命之间的一类无细胞结构的生物，绝大多数病毒的衣壳蛋白装配成二十面体对称的结构，&准等价&原理是解决严格遵从二十面体对称性的病毒衣壳几何特征的有效而成熟的方法。

Based on the principle of powder surface modification and the coating process of chemical deposition, the composites of titania/ kaoline were prepared by the hydrolysis of titanium tetrachloride and precipitating on the surface of kaoline.

借助粉体表面改性的原理及液相化学沉积的包覆工艺，以高岭土为核，利用四氯化钛水解在其表面包覆一层纳米二氧化钛制成高岭土复合钛白，并用TEM、XRD等手段进行了表征。

It is most likely that the later writers on Vimanas, wrote as observers and from earlier texts, and were understandably confused on the principle of their propulsion.

这更适合后来在Vimanas上的作者如同他们观测到的和来自比较早的文献，而且为它们的推进原理感到困扰。

It is most likely that the later writers on Vimanas, wrote as observers and from earlier texts, and were understandably confused on the principle of their propulsion.

最大可能性就是维曼拿的后期作者，以观察者身份来看这些文章，并且是引用更早的文献，可以理解的就是，他们会对维曼拿的推动原理表示困惑。

On the principle of energy saving,environment protection and high efficiency,the process technology of nitrided manganese based on powder block was optimized.

在节能、环保、高效原则下，基于粉末压坯对氮化锰生产工艺进行了试验。

According to the study on the existed fire fighting equipment in port, using fire protection systems of oil tank areas and oil terminals in China and abroad for reference, basing on the principle of systematic engineering, and applying LAN and PLC techniques, we developed the efficient, reliable and advanced fire protecting system which integrates fire-protection early-warning subsystem, fire protection control subsystem, and fire-fighting execution subsystem applicable to oil products operating site of the New Port. This system integrates the fire-protecting equipment and resource of the New port efficiently with less cost to form an organic system, and increase greatly the accuracy, reliability and reaction speed of fire fighting.

通过对目前港区现有消防设备的研究，借鉴国内外油库区、油码头消防系统，用系统工程原理，应用局域网络技术及PLC技术，研发出了适用于新港油品作业场所的集消防预警子系统、消防中心控制子系统、消防灭火动作执行子系统于一体的高效、可靠、先进的消防系统，该系统以较低的成本最大限度将新港的消防设备及资源整合起来，形成一个有机的体系，极大地提高消防灭火的准确性、可靠性及反应速度。

Materials And Methods 1, The animal model of Sprague-Dawley rat for maxillary protraction was made in this study, and an appliance based on the principle of protraction headgear was designed and made for maxillary protraction treatment which was hooked over the front of the zygomatic arch ,and a hole was made on the skull in the experimental group rat .

以面具式前牵引矫治器为原理制作特殊的前牵引支架，以外科方法安装支架挂在大鼠颧弓前端，在实验加力组大鼠头颅上打孔，安放挂钩，通过弹性牵引提供支架向前牵引的支抗。2、以该动物模型为基础，选用90只五周龄的Sprague—Dawley健康雌性大鼠作实验动物，随机分到实验加力组、正常对照组、手术对照组。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。