...整个换热器的传热速率 表征了换热器的生产能力，单位为W； q=Q/A 2 、热通量q (heat flux)或热流密度(density of heat flow rate) 指单位时间内通过单位传热面积缩传递的热量。在一定的 传热速率下，q越大，所需的传热面积越小。
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... density meter(of ionizing radiaiton) (电离辐射)疏密程度计 density of heat flow 热流疏密程度 density of snow 积雪疏密程度 ...
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density of heat flow rate [热] 热流密度 ; 热流率密度
To improve the surface quality of flexible formation using plasma arc, its heat-flow density on unit area is controlled by controlling the swinging of the plasma arc with the alternate magnetic field.
为进一步提高等离子体弧柔性成形的表面质量，利用磁场控制弧柱的摆动状态进而控制单位面积上等离子体弧的热流密度，使之达到预期目的。
The supercritical fluid has the following unique characteristics: low viscosity, high density, better performance of flow, mass and heat transfer, dis solution and so on.
前言：超临界流体具有黏度低、密度大，有较好的流动、传质、传热和溶解性能等特性。
The effects of the heat flux, wall temperature and flow resistance on the nondimensional entropy generation density have been discussed.
讨论了壁面热流、壁面温度及流动阻力对无因次熵产强度的影响。
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