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1·Free convection has been defined as a flow driven by density variations.

自由对流是一种由于流体的密度变化而产生的流体的运动。

2·The fluids carry a lot of dissolved solids and hydrocarbon in free convection.

自由对流的流体在运动过程中搬运了大量的矿物质和烃类。

3·Convection without phase change can be divided into free convection and forced convection.

无相变的对流换热分为自由对流及强迫对流二个方面。

4·Under certain conditions, the vertical density difference may induce free convection of the fluids.

在一定的条件下，该密度差可导致流体产生自由对流。

5·Holographic interferometry has been used to study the heat transfer by free convection from horizontal elliptic cylinder.

本文用激光全息干涉法研究了水平椭圆管的自然对流放热。

6·The experimental results indicate that free convection caused by the buoyancy in the heated tube with natural circulation has great influence on the heat transfer characteristics.

实验结果表明，自然循环工况下上升加热段内工质的物性变化及由浮升力引起的自由流动对对流传热特性有重要影响。

7·Supposing that the level of free convection is equal to the cloud bottom level, we considered the pulling effects of simulated sub-grid scale precipitation, which is under clouds.

假设自由对流高度为云底高度，考虑模式模拟次网格尺度降雨的云下拖曳清除作用。

8·As a result, heat dissipating capacity, metal thermal intensity and free convection heat transfer coefficient of the longitudinal closed finned tube are higher than those of the open finned tube.

结果表明，封闭式纵向翅片管的散热量、金属热强度以及自然对流换热系数都要高于开放式翅片管。

9·In addition, mute oil free compressor USES air convection principle, to achieve the natural cooling effect.

另外，静音无油空压机采用空气对流原理，达到自然冷却效果。

10·The default values represent free air convection.

默认值代表的是自由空气的对流系数。