Methods Use a standing wave tube to measure the sound absorption coefficient of many kinds of grain.
采用驻波管法测量了多种粮食的吸声系数。
This paper gives an account of and analyses the experimental results of heat transfer and drag coefficient of the spiral tube of different construction.
本文叙述了对不同结构螺纹管阻力系数和传热性能的试验结果，并对试验结果进行了分析。
The heat transfer coefficient of large tube rotary dryer was calculated by using particle transfer model of moving heating-plate type.
论述了应用基于移动加热板的颗粒热传递模型计算大型旋转管排式干燥机传热系数的方法。
The model with random tube net structure is used to analyses the penetrating coefficient of soil theoretically.
应用土壤的随机管子网络结构模型，从理论上对土壤的渗透系数进行了分析。
Normally, coefficient of convective heat transfer is gotten through experiments which is heating testing tube by electricity and computed through Newton cooling law.
通常，对流换热系数是在实验中以电加热试验管壁面后根据牛顿冷却定律计算得来的。
This makes the convective heat transfer coefficient of the stainless steel tube is larger than that of the convection heat transfer coefficient of the copper tube.
这就使不锈钢管的对流放热系数比铜管的对流放热系数大。
It is generally obtained by the experimental method, namely using Newton cooling formula to get tube outside heat transfer coefficient, then get the tube outside Nusselt number.
一般通过实验的方法求得，即运用牛顿冷却公式求出管外对流换热系数，进而求得管外努谢尔数。
The results showed that the total heat transfer coefficient of heat exchanger with hot water arranged in shell-side was relatively higher by 33% than that with hot water arranged in tube-side.
结果表明：在相同的管、壳程流速下热流体在壳程时换热器总传热系数比热流体在管程时相对高出约33%。
The theoretical method for calculating the absorption coefficient of the absorber is provided by analogying the acoustic field in a tube with varying cross section.
对尖劈型吸声材料用类比变截面管道的声场理论，给出了计算其吸声系数的一种方法；
The calculation method of some important parameters, such as the heat transfer coefficient, dead time and so on of the closed steam tube rotary dryers was proposed.
提出了密闭型蒸气管回转干燥机传热系数及停留时间等主要工艺参数的计算方法。
Experimental results show that the condensation heat transfer coefficient of thermoexcel-C tube decreases as the saturation vapor temperature increasing.
实验结果表明：随着饱和蒸汽温度的提高，C管的凝结换热系数下降。
As a result, heat dissipating capacity, metal thermal intensity and free convection heat transfer coefficient of the longitudinal closed finned tube are higher than those of the open finned tube.
结果表明，封闭式纵向翅片管的散热量、金属热强度以及自然对流换热系数都要高于开放式翅片管。
The sound absorption coefficient of the material was tested by standing wave tube method.
采用驻波管法测试材料的吸声系数。
The results show that: the springback Angle of bent tube increases with the bending Angle, the gap between mandrel and tube, and the hardening coefficient, but decreases with the hardenability value.
结果表明：回弹角随弯曲角、芯棒与管壁间隙及材料硬化系数的增大而增大，随材料硬化指数的增大而减小。
The wall thickness of the tube will be increased with increasing back pressure or increasing friction coefficient.
管材弯曲内外侧壁厚随着反推压力的增大或摩擦系数的增大而增大。
The result shows that heat transfer coefficient of corrugated tube heat exchanger is over 1.5 times than that of bare tube.
结果表明，波纹管换热器的总传热系数比光管高1.5倍以上。
Test results show that the drag coefficient and the law of hydrostatic pressure are independent of the entrance tube type.
证明了引入管布置型式对减温器阻力系数和静压分布规律并无影响。
Local convection heat transfer coefficient decreases along the micro-tube by 12.5% for the influence of thermal conductivity of liquid nitrogen.
微通道中局部对流换热系数受到液氮导热系数变化的影响沿管程逐渐下降约12.5%。
The alumina titanate ceramics delivery tube made of the completely novel ingredients has a small thermal expansion coefficient, good thermal stability can meet using needs.
全新配料组成， 所得的钛酸铝陶瓷导液管热膨胀系数小，热稳定性好，满足使用要求。
The heat transfer coefficient increased with the inner tube diameter decreased.
凝结换热系数随内管径的增大而减小。
Through the examination experiment on three tube pieces' crack part, the relation of crack width, the maximum of leak magnetic field and differential coefficient is found out.
通过对三个管件的裂纹部位的检测实验，找出裂纹宽度与漏磁场的最大值和变化梯度之间的关系。
Through the examination experiment on four tube pieces crack part, the relation of crack width, the maximum of leaking magnetic field and differential coefficient K is found out.
以经爆破试验的四件小钢管件裂纹为研究对象，找出裂纹宽度与磁记忆信号的关系，得出漏磁场变化梯度的最大值随裂缝宽度增加而增加。
Besides, they decrease rapidly with the increase of tube bundle rows. When the row number amount to 8 or more, the resistance coefficient does not change any more.
随管束排数的增加，阻力系数迅速下降，当管束排数大于8后，则不再有明显变化。
Under normal production conditions, the die angle, friction coefficient, tube material and material temper can be neglected in the calculation.
双周数表通用性较强，在一般的生产条件下，可以不考虑模角、摩擦系数、管材材质及其状态等因素；
Using mixed tube bundle, high heat transfer coefficient can be acquired as well as pressure drop not too high.
采用混合管束既可获得高的总传热系数和管内外传热膜系数，又可以使管内压降不致过大。
The tube surface has extreme hardness (60 RC.), excellent wear and corrosion resistance, and low coefficient of friction.
管表面有极大的硬度(60钢筋混凝土。)，良好的耐磨性和耐腐蚀性，低摩擦系数。
For the horizontal tubes bundle an enhanced action on the pool boiling heat transfer exists. Heat transfer coefficient of the tube bundle is...
管束对池沸腾换热有增强效应，水平管束的沸腾换热系数明显高于单管的沸腾换热系数。
For the horizontal tubes bundle an enhanced action on the pool boiling heat transfer exists. Heat transfer coefficient of the tube bundle is...
管束对池沸腾换热有增强效应，水平管束的沸腾换热系数明显高于单管的沸腾换热系数。
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