查询词典 temperature gradient

Hence, the effect of temperature gradient should be considered when adopting artifical frosting studied natural frosting.

这对于正确研究路基的冻胀现象，具有着重要的理论意义和实际意义。

Another is the constant temperature gradient on the crack surface, which includes the insulated and uninsulated crack cases.

研究了含中心裂纹的正交各向异性板，在远场均匀热流作用下温度场的分布。

The unstable mode is not sensitive to the ion temperature gradient parameter and the poloidal wavelength.

高比压下的不稳定模对离子温度梯度和角向波长的变化的响应减弱。

The result is:when the outside of the wall is looked as the boundary ,the vertical temperature gradient and the thermal stratification height are affected by both the upflow from the heat sources and the upflow on the inner surface of the wall.

研究结果表明：当把围护结构的外表面作为边界时，垂直温度梯度和热力分层高度的变化是热源上升热羽流变化量和内表面上升热羽流变化量的综合作用。

And the final is that the study on zonal flow driven by ion-temperature-gradient mode.

最后部分是离子温度梯度模驱动的环带流生长研究。

In this paper, two high temperature gradient directional solidification apparatus with liquid metal cooling and electron-beam floating zone melting were used.

本文采用LMC和电子束区熔两种高温度梯度定向凝固装置，研究合金成分及工艺参数对初生相析出行为的影响，优化了自生复合材料的制备工艺。

We find that using the guide shell and the cooling cover improves the argon flow field,the solid-liquid interface,and the temperature gradient.It is good for the emanatory of crystallization latent heat and the improvement of the radical resistivity in the crystal.

研究发现在导流系统中引入导流筒及冷却功能后，氩气流场得到明显的改善，晶体中纵向温度梯度均匀性改善，固液界面趋于平坦，有利于结晶潜热的散发和单晶径向电阻率的均匀性。

Evolution pattern of solidification microstructure in the monophase Cu Ni alloy in the range of thermo dynamically supercooling of 63～292 K is investigated, and both the condition of supercooling degree and orientation mechanism and control method of directional crystalline growth in the melt under negative temperature gradient are analyzed.

研究了 6 3～ 2 92K热力学过冷度范围内，Cu Ni单相合金的凝固组织演化规律，分析了负温度梯度熔体中晶体定向生长的过冷度条件以及晶体生长取向机制与控制方法。结果表明：(1)在临界过冷度ΔT (≈ 10 6K)附近，晶粒细化过程受溶质扩散控制，在临界过冷度ΔT (≈ 2 0 0K)附近，晶粒细化过程受热扩散控制；(2 )在 6 3～ΔT K范围内，晶体的生长方向是 [10 0 ]，在 12 7～ΔT K范围内，晶体的生长方向可以是 [10 0 ]，也可以是

The molecular diffusion mechanisms describe the diffusion process of the paraffinic hydrocarbon to the surfaces due to the temperature gradient of the liquid phase.

分子扩散机制描述石蜡烃类扩散过程的表面由于液相的温度梯度。

The "hairing" phenomenon on highN compound fertilizer is for urea being changed into a kind of acicular subtransparent substance on the surface of compound fertilizer granules under the interation of temperature gradient and moisture.

剖析了高氮复合肥&长毛&结块的原因，主要是由溶解度较大的尿素在温度梯度和水分的作用下，在复合肥颗粒表面逐渐生成的一种针状放射型半透明体所引起。

He knows that he's one of the mostdominant players in the NBA right now.

我知道他现在是联盟里最有统治力的球员之一了。

Using analysis method of BCG , the dissertation analyzed the management of voluntary service organizations .

利用BCG分析方法对我国的志愿服务组织管理进行了分析。