secondary thermal system的意思|示意

The main components of the bioreactor were:a two-room fermentation case, a thermal insulation layer, an air supplying system, an air heating system, and a secondary pollution prevention system.

装置主要结构包括：二室堆肥发酵仓、保温层、通风供氧系统、空气加热系统以及二次污染控制系统。

The main function of the power conversation system, also called secondary system, is to convert the thermal energy from the steam generators to mechanical energy, in turn, electrical energy.

能量转换系统也称为二回路系统，其主要功能就是将SG的热能转化为机械能，然后转化为电能。