The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection.
然而，羽毛的稀疏分布也使得皮肤表面形成相当大量的侧向空气流动，从而可以通过对流进一步散热。
Convection within the red giant dredges the new proto-dust atoms from the core up to the surface.
红巨星内部的对流碰撞出新的原始尘埃原子会从其核心撞到表面。
If the surface is cooled and the air above it warmed, there is less tendency for air from near the surface to rise; reduced convection will tend to lead to fewer clouds and reduced rainfall.
假设地表降温而其上的空气升温，那么地表的空气要向上升腾就变得不那么容易；而对流减少导致的将会是趋向于减少的云层生成和降雨。
The convection zone reaches up to the sun's surface, and makes up 66 percent of the sun's volume but only a little more than 2 percent of its mass.
对流区的范围直达太阳表面，占有太阳体积的66%，但只有太阳质量的2%多一点儿。
Retractable blowers shall be provided for the convection evaporative surface (third pass) and inlet to the superheater.
应为对流蒸发面(第三通道)和至过热器的出口进口提供伸缩式吹灰器。
The atmospheric phenomena suggested by jovian cloud tops are caused by convection the transfer of heat from the interior of the planet to its surface and beyond.
木星云顶景观显示了由热对流造成的大气现象：对流将热量从行星内部转移至表面或更远的地方。
Moreover, the turbulent stress also causes the convection the mixing action to strengthen, so elements abundance of the stellar interior and surface are all changed.
另外，湍流应力还使对流的混合作用加强，从而导致恒星内部及表面的各元素丰度都发生改变。
It investigates experimentally mixed convection and heat transfer augmentation by forced jets in a large rectangular enclosure with a vertical cooling surface.
实验研究了在具有垂直冷却面的大型矩形腔体中因强迫射流造成的混合对流传热。
A numerical study is carried out for the combined heat transfer of turbulent natural convection and surface radiation in an two-dimensional open square cavity with only one heated wall.
对具有单个加热壁的二维方形开口空腔内的湍流自然对流与表面辐射的耦合传热进行了数值研究。
Method and formulae for calculating the mean forced convection heat-transfer coefficient of the blade surface, as well as for the blade passage's bottom wall, are introduced.
介绍了汽轮机动叶片叶身平均对流换热表面传热系数和叶片流道下壁面对流换热表面传热系数的计算方法和计算公式。
The test results indicate that there is linear relationship between surface convection coefficient of concrete and wind velocity.
结果表明，混凝土表面对流换热系数与风速基本呈线性关系。
Finally, this paper analyses the data which are measured in new heating transfer appliance with the pin fins tubes and explains the effect of using the pin fins tubes for convection heating surface.
本文最后对采用针翅管的传热设备的实测数据进行分析来说明采用针翅管作为对流受热面所取得的实际效果。
The coefficient can be indicative of the material abrasion resistance properly and directly used to calculate the safety gas velocity in the convection heating surface of coal-fired boilers.
并用它表征塑性材料的抗磨性能。该系数可直接应用于计算燃煤锅炉对流受热面的安全烟速。
The calculate formula premise of the residual life of boiler convection heating surface is pointed out, and the cause of heating surface wearing due to the quality decline of coal is analyzed.
指出了影响锅炉对流受热面剩余寿命计算公式的应用前提，分析了由于燃煤质量的下降，造成受热面磨损的原因。
Two kinds of banded structure caused by convection and unstable moving of the worktable have been observed on the surface of the molten pool and in the melted region.
熔池中存在的对流和激光扫描过程中工作台运动的不稳定造成了熔池表面波纹状组织和熔池中三维条带状组织的出现。
Convection above a hot surface occurs because hot air expands, becomes less dense, and rises (see ideal gas law).
对流段的一个热门表面出现的，因为热空气的扩大，成为密度较低，而上升(见理想气体定律)。
The complex heat transfer of turbulent natural convection combined with surface radiation in open cavities is analyzed by numerical method.
用数值方法分析了开口空腔中的湍流自然对流与表面辐射相互耦合的复杂传热。
The receiver with a vacuum tube can greatly reduce the heat loss caused by surface convection, and hence the heat transfer efficiency can be improved effectively.
而太阳能集热器用真空管作为接收器，可以大大减小接收器外表面的散热损失，可以显著提高集热器的集热效率。
The affection of heat convection to temperature field is discussed, and it is found that the heat convection can weak the temperature difference on stock surface, and improve temperature field.
比较了有无对流换热对窑内温度分布的影响，得出对流换热对改善温度场和减小砖坯的表面温差有一定作用；
This paper offers the measured distribution of the surface temperature of horizontal finned tube along the circumference in natural convection heat transfer.
实测了水平肋片管在自然对流换热条件下圆管表面温度在圆周方向上的分布。
Some useful formulas for convection calculation of vertical and horizontal duct are given. So temperature decrease at the surface of discs and temperature rise of oil flow can be obtained.
得到了较为适合的垂直油道、水平油道自然对流换热特性数经验关联式，并据此得到了自然油循环变压器垂直油道和水平油道线饼表面温降和油流温升的计算方法。
Stoichiometric ratio of fuel-air mixture is 0.4. Convection heat exchange has adopted as a boundary condition of external surface.
燃料-空气混合物的当量比为0.4，燃烧器外壁面与环境采用对流换热边界条件。
A linearized method to solve the rectangular fin surface heat transfer involving radiation 'convection and conduction is given.
给出了矩形直肋散热器有对流、辐射及导热同时存在的复杂换热问题的一种线性化解析方法。
The quantitatively experimental result showed that the reason that induces the Marangoni convection is the local large surface tension gradient along the interface of the gas and liquid.
定量分析表明乙醇和水系统解吸过程中，引发界面湍动的原因是局部较大的表面张力梯度。
An active region with a bipolar sunspot is formed when the magnetic flux ring of the sunspot rise to the solar surface from the depth of solar convection zone.
当太阳黑子磁环从太阳对流层深层上浮到太阳表面时，便形成了一个双极黑子群的活动区。
A partly enclosed, directly heated surface from which warm air circulates by convection.
对流式加热机一个部分被封闭。
The heat -transfer caused by the convection and radiation on the surface of mold is considered in boundary condition;
在边界条件中考虑了铸型外表面的对流及辐射换热；
Radiation plus convection heat sinks, a large aluminum wing surface area, effective heat dissipation.
辐射加对流的散热方式，较大的铝翼表面积，散热效果好。
Radiation plus convection heat sinks, a large aluminum wing surface area, effective heat dissipation.
辐射加对流的散热方式，较大的铝翼表面积，散热效果好。
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