convection zone

基本解釋

Starting at the outside and going down into the Sun, the zones are the corona, chromosphere, photosphere. convection zone. and finally the core.
從太陽外部開始進入內(nèi)部這些區(qū)域為：光環(huán)帶、色球帶、光球帶、對流帶，最終為核心帶。
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.
對流區(qū)的范圍直達太陽表面，占有太陽體積的66％，但只有太陽質(zhì)量的2％多一點兒。
Based on the slab caster operation the surface of the roller is divided into three zones, they are: heat conduction zone, convection zone and the radiation convection zone.
根據(jù)連鑄機輥子的實際工作情況，將其內(nèi)外表面分成傳導傳熱區(qū)、對流換熱區(qū)和輻射—對流綜合換熱區(qū)。