易导热的

A boundary identification problem of two-dimensional unsteady heat conduction was solved by using dual reciprocity boundary element method and conjugate gradient method-based inverse algorithm.

采用基于双倒易边界元法和共轭梯度法的反演算法求解二维非稳态导热边界识别问题。

At 20℃ the relationship between thermal conductivity and density of corkboard may be predicted with following equation: Where: K-At 20℃, thermal conductivity of corkboardKcal/m.

寻找软木砖导热系数与容重间内在关系的规律性，在没有准确的实测数据时，用极易测定的软木砖容重，来测算和控制其导热系数值，在生产和工程设计中，具有一定的实用价值。

Compared with other wave-guide material, glass is not so good on the thermal conduction, and its transmission loss is bigger, but it is easy for processing, especially the wave-guide surface can have much higher degree of finish.

虽然玻璃较其它波导材料导热性能较差、传输损耗较大，但由于易加工，尤其是波导面可达到很高的光洁度，且价格低廉，因此硬质玻璃波导CO_2激光器仍具有很高的实用价值。

In this thesis, the engineering property of the frozen earth in the frozen railway roadbed in Anduo section (between DK1561+975-DK1562+530) of Naquhe region of Qinghai-Tibet railway was studied indoor. The change of engineering property of the earth samples with different water content , density and temperature were researched. The influence of concentration of the diffluent salt to the frozen strength was pilot studied. The thermal conductivity of the soil was experimented. With the result and data of the tests, the earth temperature field in Anduo section was demonstrated by numerical analysis, the structure parameter of the spall revetmentd and the rubble berm was given, the stability of the railway roadbed was evaluated.

本文以青藏铁路格尔木-拉萨段那曲河地区安多段(DK1561+975～DK1562+530)冻土路基为对象，对该地区冻土的工程性质进行了室内试验研究；对不同含水率、不同压实度的土样，研究在特定温度变化范围内工程性质的变化：初步分析了易溶盐含量对冻结强度的影响：测试了土样的导热系数；在室内土工试验的基础上，根据测试结果和数据，对安多段区域地温场进行了数值模拟，分析了该工点区间内合理片石护道、碎石护坡结构参数，评价了路基稳定性。

Copper-base sprayed welding alloy is produced by adding B, Si, Ni, Mn, Al, Fe and P into the copper base, which has sound heat conduction or electricity conduction performance, being antirust, with low frictional coefficient and sound adhesive friction wear resistance, easy for cutting and being smooth.

铜基喷焊合金，是在铜基体中加入B、Si、Ni、Mn、Al、Fe、P等合金元素制成的，具有良好的导热，导电性和耐蚀性，摩擦系数低，耐粘着摩擦磨损性能优良，易切削，光洁度高。

Low viscosity, Easily pourable potting material, Features high thermal conductivity, convenient mix ratio and has a UL Flame Rating of 94V-0, useful for potting delicate electronic/electrical parts.

低粘度，易浇注的灌封材料，高导热性，简单的混合比，UL 94V-0认证，广泛应用于精密电子、电气产品的灌封、密封上。

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。