低导热率和低热容。
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 usage of nonmetallic materials with low heat conductivity is beneficial to a better performance provided that only the axial heat conduction losses are considered.
它集重质耐火浇注料和轻质隔热浇注料的优点于一体，既具备强度高、耐高温的机械性能，又具备低体积密度、低导热率的隔热性能。
It has the advantage of the heavy quality refractory and the light quality and has the higher strength, high temperature resistant, low physical volume density and low heat transmit rate.
复合硅酸盐保温材料可塑性强、导热系数低、耐高温、浆料干燥收缩率小等特点。
Composite silicate insulation material plasticity, low thermal conductivity, high temperature resistant, low pulp drying shrinkage rate, etc.
工程陶瓷材料具有许多优良性能：高硬度、高化学稳定性和低的导电、 导热率等。
Engineering Ceramic materials have many attractive properties such as high hardness high thermal resistance, chemical stability and low electrical conductivity, etc.
所以它的导电率比较低，并且导热率也非常低。
So it has low electrical conductivity and low thermal conductivity.
目前广泛使用的铸铁刹车盘导热率低、易热裂、耐磨性差，需要加以改进。
Iron brake disc used widely at present with low thermal conductivity, easy hot cracking and low wear resistance needs to be improved.
金刚石具有高导热率、低介电系数、高禁带宽度、超高硬度、低摩擦系数等性质，在国民经济的许多部门得到了广泛的应用。
Diamond has many characters, such as high thermal, low permittivity, high band gap, super high hardness, low friction etc, which makes it possible to be widely used in industry.
使用温度高，强度高，烧后线变化小，导热率低，可直接接触高温火焰。
High service temperature and high strength good volume stability low THML. Cond. And can contact flame directly.
由于铝合金高导热率和低电阻率的特点，因此其点焊性能较差。
The spot welding performance of aluminum alloy is poor because of its high thermal conductivity and low resistivity characteristics.
进一步研究表明，砂型材料的导热率及合金粉块内低熔点的熔合剂过多均会影响复合材料的质量。
Further results indicate that the thermal conductivity of sand mold and the high fraction of binder alloying for the low melt point in the block will affect the quality of FGM.
上述制备原料和方法制备的莫来石砖具有导热率低、保温性能优、抗侵蚀能力强的优势。
The mullite brick prepared by the raw materials and preparation method has the advantages of low thermal conductivity, good thermal insulation property and strong corrosion resistance.
导热率低，绝热保温性能好，可浇注、涂抹或捣打施工。
Low thermal Conductivity, and can be installed by casting, Coating or ramming.
银具有最高的导电率和导热率，但熔点低，硬度低，易产生硫化物膜。
Silver has the highest conductivity and thermal conductivity, but the low melting point, low hardness, easy to produce sulfide film.
银具有最高的导电率和导热率，但熔点低，硬度低，易产生硫化物膜。
Silver has the highest conductivity and thermal conductivity, but the low melting point, low hardness, easy to produce sulfide film.
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