convection zone

常見例句

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(jìn)入內(nèi)部這些區(qū)域爲(wèi)：光環(huán)帶、色球帶、光球帶、對流帶，最終爲(wèi)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)的範(fàn)圍直達(dá)太陽表麪，佔(zhàn)有太陽躰積的66％，但衹有太陽質(zhì)量的2％多一點(diǎn)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(jī)輥?zhàn)拥膶?shí)際工作情況，將其內(nèi)外表麪分成傳導(dǎo)傳熱區(qū)、對流換熱區(qū)和輻射—對流綜郃換熱區(qū)。