查询词典 conduction

The function of digit trigger circuit is used to turn voltage of simulate trigger circuit to a digit, one to adjust to conduction angle and more to control the trigger pulse by controlling the digit.

数字式触发电路是将模拟式触发电路中的控制电压转变成数字量，通过对数字量的控制，达到对导通角的调节，从而控制触发脉冲。

This model is based on a one- dimensional heat conduction equation, an equilibrium press- temperature relation, energy and mass conservation relations.

喷墨过程的数值建模是建立在一维热传导公式，温度-压强关系式和能量、物质转换关系的平衡的基础上的。

This makes more and more people pay more attention to studies and applications of numerical simulation in thermal recovery. In this research, we have developed a reliable mathematical model for thermal recovery, which takes a full consideration of the effect of viscos, gravitical and capillary forces on the three-phase flow of gas, water and oil, the effect of the temperature on the medium characteristics of liquid and solid, the phase equilibrium of gas-liquid in each component, heat transportation including connection, conduction and radiation as well as heat losses in both the overburn and underlying strata. In the space discreation of the mathematical model, we have proposed a new method based on the improvement of the conventional nine-points difference approximation, which has a higher difference accurancy.

本项研究以热力采油的主要机理为基础，充分考虑在粘性力、重力和毛管力作用下油水气三相流动，考虑温度对各种流体和固体介质物性的影响，考虑每一组分中汽液两相的相平衡，考虑热在地层中的传导、对流和辐射以及上下盖层的热损失，利用热力学第一定律、质量守恒定律和流体迁移定律，建立了正确可靠的注蒸汽数学模型；在对数学模型进行空间离散时，利用控制有限体积积分法，对以往的九点差分近似作了合理的改进，使其具有较高的差分近似精度：结果表明，该公式的近似精度要比以往文献中所给的九点差分近似精度高，可以认为，在油藏数值模拟中，如果遇到非均质情况，使用这种九点差分近似更合理。

They has good heat conduction, and also can simplify mounting and dismounting procedures, improve sealing efficiency etc.

它具有良好的导热性，安装和拆卸方便，并且大大提高了密封件的效用。

As a result,the AVNERP could n ot be measured in any dog. AV conduction curve showed significant changes before and after the administration of Metoprolol at equivalent basic cycle length,AFR P also showed significant prolongation.

分 析发现静注美托洛尔前后各个基础周期条件下，8只犬AVNERP均不能测出；相同基础周期条件下，美托洛尔用药前后房室传导曲线有明显变化，AFRP也明显延长(P＜0.05)。

Therefore, when Fe2O3 semiconductor doped with acceptor impurities of Ni, the acceptor impurities ionize and lead to the increase of conductive holes in the valence band and hence enhance the conduction capability of Fe2O3 semiconductor.

因此，当Fe2O3半导体中掺入Ni受主杂质后，受主杂质电离，使价带中的导电空穴增多，增强了Fe2O3半导体的导电能力。

Double-U curves of laser welding mode transition have been obtained, which can be used to determine the process parameters of the three mentioned welding processes.

标 签 激光焊接深熔焊热导焊焊接模式转变 laser welding deep penetration welding heat conduction welding welding mode transition

The electricity price is defined by price conduction between the Coal and Electric Power industry and suffering ability of down-stream industries.

电力价格的确定一方面受到煤电产业之间价格传导的影响，另一方面受到下游电力用户承受能力的限制。

In gases,conduction is a result of elastic collision of molecules;in liquids and electrically nonconducting solids,it is believed to be caused by longitudinal oscillations of the lattice structure.

在气体里，传导是molecules；in 液体有弹性碰撞的结果并且电子不传导的固体，它应该由格子结构的纵向动摆造成。

Heat conduction, viscous friction, elastic hysteresis, and scattering are four different mechanisms which lead to

热传导、粘滞磨擦、弹性滞后和散射是引起哪种现象的四种不同的机理？

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。