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1·As warm air rises cool air is drawn in to replace it creating a convection current.

热空气上升，冷空气补充取代之，就产生了对流气流。

2·As the main flow manner of formation water in deep reservoir, circulated convection current controlled authigenic mineral location and secondary pore distribution.

循环热对流是深部储层流体的主要流动方式，它控制着自生矿物在砂层中的析出位置和次生孔隙的分布特征。

3·The uncertainties associated with current stellar models lie in the input physics: atomicdata, convection theory, mixing in radiative regions, and mass loss.

当前恒星模型中的不确定性来自于输入的物理参数：原子数据、对流理论、辐射区的混合和质量丢失。