如果阀体的材料是可以焊接的，但膨胀系数差异很大，或者工作温度的变化幅度范围较大，螺纹连接部必须进行蜜封焊。
If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.
由不胀钢制成非常低膨胀系数的样品载台保证温度变化对样品的位置没有影响。
A very low linear expansion coefficient sample carrier made from invar ensures that temperature change has no effect on the sample position.
氮气是惰性气体，膨胀系数低，不轻易随环境温度上升而上升，可较长时间维持正常胎压，大大降低爆胎几率。
Nitrogen is the inert gases, low expansion coefficient, not easily with the environmental temperature rise for a long time, can maintain normal tire pressure, greatly reduce the flat tire.
膨胀系数与温度之间具有良好的线性关系。
The relationship between expansion coefficient and temperature will coincidence with linear relation.
可装低温液体进行低于环境温度的线膨胀系数测试试验。
Can be installed in cryogenic liquid is lower than the environment temperature linear expansion coefficient test test.
采用铅硼硅系统，研制出具有低烧成温度、低热膨胀系数的色釉，用作粘土釉面瓦釉料，其外观、物理、化学性能均能满足质量要求。
The color glaze of low firing temperature and low expansion coefficient, to match the glaze tile made from common clay, was prepared in lead borosilicate system.
为了改进单一材料构成的腔体的温度自补偿特性，提出了利用膨胀系数相近的两种材料来做双频腔的方法。
Design idea of the cavity using two different metal material of about the same coefficient of expansion to improve self-compensation action of the cavity is presented.
采用铅硼硅熔决釉研制出同时符合普通粘土瓦坯的烧成温度低、热膨胀系数低这两个主要性能特点的釉料。
The color glaze of low firing temperature and low expansion coefficient, to match the glaze tile made from common clay, was prepared in lead borosilicate system.
测试了基体和熔块的线膨胀系数、釉的熔融温度范围、釉面的白度、显微硬度和热稳定性等性能。
The coefficient of linear expansion of the body and glaze, the melting temperature range, the whiteness, the microhardness and the heat stability of glaze were tested.
该复合材料的热变形温度有所降低，但线膨胀系数减小。
Thermal deformation temperature and liner expansion coefficient of the composite were decreased.
此外，基于原型观测资料，利用统计模型和确定性模型对碾压混凝土的等效温度线膨胀系数进行了反演分析。
In addition, statistical and deterministic mathematical models are used for back analysis of equivalent temperature linear expansion coefficient based on the prototype monitoring data.
本文研究了氧化锂加入量对低温熔块的熔融温度、力学性能、热膨胀系数的影响。
The influences of lithia content on the melting temperature, mechanical properties and thermal expansion coefficient of low temperature frit were studied.
该产品具有优异的耐焊性和耐湿性，低热膨胀系数以减少变形，优异的温度循环性能和较佳的流动性。
This product is of excellent solder resistance and moisture resistance, low-heat expansion coefficient to reduce distortion, excellent temperature recycle performance and good fluidity.
根据热力学近似理论，在对体积热膨胀系数和体积弹性模量的乘积进行假设的基础上推导了一个体积热膨胀系数与体积和温度间的关系式。
On the assumption that the product of volume thermal expansivity and bulk modulus based on the thermodynamic approximation theory, a new equation is presented for volume thermal expansion coefficient.
文章利用解析法研究了材料热膨胀系数对温度场中太阳电池板最大应力的影响。
The effect of thermal property on the stress distribution in solar panel in thermal field is studied analytically.
根据具有不同温度膨胀系数的材料遇热变形不同的原理，设计了该热控系统的关键部件-热开关。
Base on the theory of differential thermal expansion between the two materials having different CTE values, a thermal switch as a crucial part in the thermal control system is designed.
热冲击是由于炉管在某些部位温度变化大，炉管和结焦物的热膨胀系数不同，而产生较大的温差应力，使炉管产生裂纹。
Because of large temperature differences in some local tubes and different expansion coefficients, large stresses of temperature difference are produced and brings about cracking in tubes.
的计算方法是来自的热膨胀系数的温度依赖性的。
The calculation method is derived from the temperature dependence of the thermal expansion coefficient.
然而，通常热膨服系数高的封接玻璃软化温度低，而热膨胀系数低的软化温度偏高。
The soldering glass has a rather low coefficient of expansion as well as low sealing temperature.
利用热机械分析仪获得了EMC材料在不同温度时的尺寸变化量，并通过线性拟合得到了EMC材料的热膨胀系数。
The thermal mechanical analyzer is used to obtain the dimension change of EMC at different temperatures; And the thermal expansion coefficient of EMC is achieved by using linear fitting.
的热膨胀钼地块的宽范围内随温度几乎呈线性系数。
The coefficient of thermal expansion of molybdenum plots almost linearly with temperature over a wide range.
研究了可膨胀石墨含量和温度对复合保护渣导热系数的影响规律。研究结果可用于：计算钢锭模帽口散热及帽口内钢水凝固时间；
The effect of expanding graphite content and temperature on the thermal conductivity of compound mold flux is studied through laboratorial measures.
现浇砼屋面的砖混房屋中 ，由于砼与砖砌体的线膨胀系数相差一倍 ，顶层墙体容易产生温度裂缝 。
Temperature crack control of the top wall in masonry-concrete building with cast-in-place concrete roof;
依据这种电子结构计算了晶格常数、结合能、势能曲线、体弹性模量和线热膨胀系数随温度的变化，理论值与实验值均符合较好。
At the same time we curve fit the bulk modulus B of these binary alloys using the results and least square mothod.
依据这种电子结构计算了晶格常数、结合能、势能曲线、体弹性模量和线热膨胀系数随温度的变化，理论值与实验值均符合较好。
At the same time we curve fit the bulk modulus B of these binary alloys using the results and least square mothod.
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