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.
这个发现与基于间隔条材料与浮法玻璃之间热膨胀系数差异而预期的性能一致。
This finding is in keeping with the expected performance based on the difference in thermal expansion coefficients between spacer material and float glass.
正常使用极限状态验证的材料分项系数值必须采纳本欧洲标准特别条款中的规定。
The values for partial factors for materials for serviceability limit state verification should be taken as those given in the particular clauses of this Eurocode.
根据截面惯性矩相等的原则，推导了空腹巨型框架等效截面高度系数以及材料用量比。
The equivalent section height coefficient and the ratio of material dosage of the hollow huge-frame structures were deduced based on the equal section inertia.
测试夹具常常采用弹簧触点的连接方法，这些触点可能由磷青铜、铍铜合金或者其它具有高赛贝克系数的材料制成。
Test fixtures often use spring contacts, which may be made of phosphor-bronze, beryllium-copper, or other materials with high Seebeck coefficients.
与传统的建筑材料相比，陶粒混凝土具有导热系数小、重量轻、结构性能好等优点。
Comparing with traditional construction materials, the ceramic grain concrete possesses the advantages of smaller thermal conductivity coefficient, less weighty and better structural performance.
屋面保温材料应选用孔隙多、表观密度小、导热系数(小)的材料。
Roofing heat preservation material should be chosen, disrupting the apparent density is small, coefficient of thermal conductivity (small) materials.
容重小的材料，一般导热泪盈眶系数也小，但同时机械强度也随之降低，故要合理选择。
Bulk density of small materials, heat conduction tear your eyes coefficient is generally small, but at the same time decreases in the mechanical strength, so be reasonable choice.
扩大应用范围的唯一途径是研究新型高优质系数的常温致冷材料。
The only way of enlarging the applicable area is to study and produce new cooling material of constant temperature with high quality coefficient.
可以间接对材料的塑性功热转换系数进行测试；
The coefficient of heat conversion from plastic work to heat can be indirectly measured.
相较于金属和热塑材料，什么材料具有更高的热膨胀系数(CTE) ？
In contrast with metal and thermoplastic material, which has a higher coefficient of thermal expansion (CTE).
设计完成对复合材料的热膨胀系数的计算和预测功能。
Designed to complete the composite coefficient of thermal expansion of the calculation and prediction functions.
主要测试塑料，玻璃，纤维，泡沫等材料的导热系数。
The main test of plastic, glass, fiber, thermal conductivity of foam materials.
研究表明，随着钢纤维的体积分数增大，复合材料的分散系数和抗压强度增加。
The research indicated that dispersal coefficient and compressive strength of the composites increase with the volume fraction.
功能梯度材料实体建模过程中，需要对材料成分方程系数进行不断修改以满足设计要求。
During the modeling for functional gradient materials, one needs to modify continually the coefficient of material composition functions to satisfy the design requirements.
分析了激光云纹干涉法测量高温材料热膨胀系数的原理和可行性。
The theory and feasibility is analyzed, for measuring Linear Expansion Coefficient of high temperature material by moiré interferometry.
根据以往的室内和野外试验结果，总结了各种岩土材料扩散系数的测定方法和具体数量范围。
Methods to determine the diffusion coefficient for different geotechnical materials and their numerical rage are summarized based on the results of previous laboratory and field tests.
该材料的吸收系数低，红外透过率高，热稳定性能良好。
The material is of lower absorption coefficient, higher infrared transmittance and good thermal stability.
合成材料具有更好的承载能力，更低的热膨胀系数，更好的耐磨性和更好的抗疲劳性能。
The composite material has resulted in greater load carrying capacity, a reduced thermal expansion, greater wear resistance and fatigue endurance.
对建筑保温系统有了解的朋友会知道，材料的干湿度和导热系数关系很大。
Friends of the building insulation system will know that the material has a great relationship between the dry humidity and thermal conductivity.
塑封集成电路因其是非气密性封装，封装材料热膨胀系数的不同以及被粘接材料表面能低，是造成塑封电路离层或开裂的内部原因。
First of all, the internal reason for the delamination or cracking is the different CTE of the packaging materials and the low surface energy of the adhesions.
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.
综述了微观尺度下利用MEMS结构测量硅材料塞贝克系数的已有工作。
The available methods of Seebeck coefficient of micro-scale material with MEMS structure were reviewed.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
散热片选用较高导热系数的材料对提高热传导效率很有帮助。
Selection of high thermal conductivity of the heat sink material is very helpful to improve the efficiency of heat conduction.
研究了增强相和界面对这三种复合材料的热导率和热膨胀系数的影响，并对这些性能进行了理论分析和数值模拟。
The effects of reinforcer and interface on the thermal conductivity and CTE of the composites were investigated, and the properties were analyzed and simulated.
在实际应用中，正确地测定和估算某些多层复合材料的导热系数，具有重要的意义。
It is of importance to determine and estimate accurately the thermal coefficient of some kinds of layer compositer.
岩棉保温毡是导热系数低的一种优质的保温隔热材料。
Rock wool carpet heat preservation is low thermal conductivity of a kind of high quality thermal insulation material.
岩棉保温毡是导热系数低的一种优质的保温隔热材料。
Rock wool carpet heat preservation is low thermal conductivity of a kind of high quality thermal insulation material.
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