They often have interesting properties, such as poor heat conductivity (which makes them good insulators) and low friction (which makes them slippery).
它们拥有很有趣的特点，例如导热性差(可以做很好的隔热材料)，以及低阻力(意味着表面很滑)。
Metals are elements that can be defined by their properties, such as ductility, toughness, malleability, electral and heat conductivity, and thermal expansion.
金属是根据可锻性，刚性，可塑性，电热导通性以及热膨胀度等特征来定义的多种元素的复合物。
The experimental results show that the relative density, hardness, relative specific conductance and heat conductivity of the billets are increased with increasing percentage composition of Cu.
结果表明，随着铜含量的增加，热挤压坯料的相对密度增加，同时相对导电率、相对热导率和硬度值也提高。
In the field of thermology, diamond's heat-durability and heat conductivity were enhanced.
在热学方面，使金刚石的耐热性和导热性均有增加；
With preheating temperature enhancing, the peak value also increase, but cooling velocity decreases, resulting from the decrease of heat conductivity of sample lower surface.
随着预热温度的提高，电阻峰值也相应增大，但是样品下表面的热导出率下降，冷却速度下降；
Copper and copper alloys are one of the most widely used metals due to their excellent electric conductivity, heat conductivity, and welding ability.
铜和铜合金具有优良的导电性、导热性和可焊性，是目前应用最广的金属材料之一。
From the results the author thought that due to the lack of high quality insulator with high heat conductivity.
经分析认为，由于缺乏高性能的导热绝缘材料，目前所制作的空心阴极的冷却效果不是很好。
Heat-transfer coefficient, heat resistivity, heat conductivity, heat exchanger, heating convection, heat conduction, heat radiation, heat convection exchange.
传热系数，热阻率，导热系数，换热器，热对流，热传导，热辐射，对流传热。
The usage of nonmetallic materials with low heat conductivity is beneficial to a better performance provided that only the axial heat conduction losses are considered.
仅从降低轴向导热损失的角度讲，使用低导热率的非金属材料制作制冷机部件对制冷性能有较大的积极作用。
The effects of absorption coefficient, refractive index, heat conductivity, convective heat-transfer coefficient and radiative properties of the surf ace on the temperature field are discussed too.
物料加热表面受到对流冷却，并讨论了物料的吸收系数，折射率，导热系数，换热系数，物料表面辐射特性对温度场的影响。
This requires using materials with good heat conductivity.
这要求使用具有良好热导率的材料。
Harder and more brittle than black silicon carbide, very sharp for grinding and of good heat conductivity.
硬度和脆性较黑碳化硅高、磨粒锋利、导热性好。
The invention improves the conductivity, thermal stability, tensile strength and heat conductivity of the inner lead, has high producing efficiency and reduces the cost.
本发明提高了半导体器件内引线的导电性能、热稳定性、抗拉强度和导热性能，生产效率高，降低了成本。
The effect of crucible heat conductivity can be neglected when heat transfer coefficient between crucible side and environment remains large enough.
并且认为当坩埚侧面与环境的热交换系数很大时，坩埚热导率的影响作用变小。
The principle and apparatus for measuring the heat conductivity of rubber composite with the quasi steady state method were described;
介绍了准稳态法测量橡胶复合材料热导率的原理和试验装置；
The heat conductivity of bentonite will increase with the rising of water content in bentonite under the same compact density.
结果表明，在相同的压实密度条件下，随着膨润土含水率的增加，导热系数也增加。
The error of measurement of heat conductivity caused by eccentricity is estimated.
分别计算了测定导热系数时因偏心造成的误差。
The heat conductivity, thermal capacity, pressure and resistance of water are bigger than those of the air, so a person loses more body heat in water and consumes more energy than on land.
水的导热性和热容量、压力和阻力都比空气大，人在水中体热散发相对多一些，能量消耗也大于陆上活动。
Copper plating technology is widely applied to the field of electronic materials manufacturing for the good electrical conductibility, heat conductivity and ductility of copper deposit.
电镀铜层具有良好的导电、导热、延展性等优点，因此，电镀铜技术被广泛应用于电子材料制造领域。
A snap ring is arranged at the underside of the inductive probe, takes a ring structure with a lateral opening and is made of dumet materials that have good heat conductivity.
感应探头下侧设置卡环，卡环为侧面开口的圆环结构。卡环由导热性能好的铜镀镍材料制成。
Equivalent heat conductivity of PWB is related to the thickness of PWB, the residual ratio of copper foil and the thickness of copper foil.
PWB的等效导热系数与PWB的总厚度、铜箔剩余率及铜箔厚度有关，设计时需考虑相关因素。
The effects of heat conductivity and thickness of glue on laser damage threshold and heat recovery time are calculated and discussed.
计算和讨论了胶层的热传导率、厚度对激光破坏阈值及热恢复时间的影响。
The thickness, surface density, heat flux and heat conductivity of spunlaced binding down web were tested under different frequency values, and the relationships between them were also discussed.
对不同分频值下水刺绑定羽绒网的厚度、面密度、热流量和导热系数作了测量，并对其相互关系作了讨论。
There are many defects in rubber machining due to larger elasticity, lower heat conductivity and strength of rubber.
橡胶的回弹性大、导热性差、强度低，属于难加工非金属材料之一。
Aluminum has the advantage of combining lightness with high heat conductivity.
铝兼有重量轻，导热性好的优点。
The influences of the black N330, N339 and N351 on the heat conductivity of radial tire tread were investigated with orthogonal experiment.
采用正交试验法研究炭黑N330，N339和N351用量对子午线轮胎胎面胶导热特性的影响。
The foam metal nickel has the advantage of good heat conductivity and the molten salt has the advantage of large heat storage quantity per unit weight or volume.
泡沫金属镍具有传热性能好，熔融盐具有蓄热量大、化学稳定性好等优点。
A ceramic rod with favorable heat conductivity is arranged on the bottom of a crucible to be used as a support seat to enhance the heat dissipation of the central position of crystal.
坩锅底部采用了导热性良好的陶瓷棒作支座，以增强晶体中心部位的散热。
The silicon brass was used to fabricate the covers of cooler in order to satisfy the requirements of resistant sea water corrosion, high heat conductivity and enduring water pressure.
为了满足耐海水腐蚀、高导热率和承压能力要求，冷却器盖均采用硅黄铜制造。
Compared with the heat-proof corundum bricks, the heat-proof bricks prepared by employing lightweight magnesia-alumina spinel brick raw material have lower heat conductivity.
与隔热刚玉砖比较，用轻质镁铝尖晶石原料制备的隔热砖的热导率更低。
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