A provincial stationary engineer licence, compressor operator or refrigeration certificate may be required when certain kinds of equipment are included in the process.
当某些类型的设备包含在该过程中时,可能需要省级固定工程师执照,压缩机运营商或制冷证书。
2
The model of CAD system is constructed after analyzing the actuality and processof heat-exchange equipments' design in refrigeration industry.
本文通过分析目前制冷行业换热设备设计的现状和流程,构建了换热设备CAD系统的系统模型。
3
A simulation model of ammonia absorption refrigerationprocess involving material and heat balance is given.