The main products are: series compressors, various semi-closed refrigeration system, cooling fan, condenser, water cooling condenser and various spare parts.
主要产品有：半封闭系列压缩机，各式制冷压缩机机组，冷风机，冷凝器，水冷冷凝器及各种零配件。
2
The mineralization system was a semi-closed state in the main metallogenic stage.
在主要成矿阶段，体系处于一种半封闭状态。
3
It practices the semi-closed management and adopts the dorm and school gate double registration system, highlighting the combination of the strict management and educational guidance.