对流

All those are the results of gravity-driven convection and static hydrostatic pressure.

这是重力驱动对流和流体静压力作用的结果。

The results obtained from range analysis and variance analysis show that the channel turning angle is the most important factor affecting the flow index, and the flow rate is seriously influenced by the number of channel units, which facilitates settling the problem of increscent flow rate due to the structural optimization.

流量和流态指数的极差和方差分析结果均显示出流道转角对流态指数的影响最显著，而流道单元数对灌水器流量的影响最大，这一结果有助于解决流道经优化后带来的流量增大问题。

It is a little weak in deep convective systems due to the apparent slant of moist isentropic surfaces.

但在深对流系统中由于湿等熵面的倾斜变得较弱。

Tne spilite-quartz keratophyre are thought to most probably crystallize from basic and acidic magmas contaminated by the convective circulating hot brine on seafloor.

细碧岩-石英角斑岩建造很可能为基性及酸性岩浆受对流循环的海底热卤水一定的混染作用后结晶形成。

The mositened air can be lifted to the 320-340K potential temperater levels firstly, and then transport toward North-West conved by largen scale advection.

对流抬升作用下，湿空气可向上输送到位温320-340K高度，然后在南亚反气旋大尺度平流作用下，在反气旋的西侧向北输送。

In previous researches, the numerical simulations were mainly focused on the convective heat transfer in the fluid zone of the louvered fin geometry. Virtually, the heat conduction in the fins and the convective heat transfer of air are coupled each other.

国外有学者对百叶窗翅片内的流场和温度场进行了数值模拟，事实上，在百叶窗翅片上的传热过程中，翅片的导热和空气的对流换热是相互耦合的，而这在以前的研究中忽略了。

A large range of Li abundances is observed in solar-type stars of the same age, mass and metallicity as the Sun, but such a range is theoretically difficult to understand.

太阳本身的表面锂丰度比原始太阳系的值要小140倍，然而太阳表面对流区被认为不会延伸到其内部远至锂的温度高到足以让锂燃烧的区域。

The cause of bursting of convection pipe was studied by the methods of chemical analysis and metallographical and physical examination.

采用化学分析、金相检验及力学性能测定等方法，对锅炉对流管爆裂原因进行了分析。

The mixing layer meteorologically is one kind of the atmospheric boundary layer.

所谓&混合层&在气象学上系指近地面1000m附近，气流受地表扰动及热对流效应影响，具有充份的上下混合效应之一大气边界层。

The effects of microburner dimensions, heat conductivity and thickness of wall, external heat losses and wall roughness on com-bustion characteristics were studied.

模拟结果显示，燃烧器内径的变化、壁面导热系数、对流换热系数和壁面厚度的变化影响了热量在壁面内的传递和流体内径向温度的传递，使得燃料点燃和燃烧稳定性受到影响，甚至导致燃烧停止。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。