ghx
美 英
例句
Indoor air change flow was determined by portable IR gas analyzer. The instrument was GHX-3010E and the trace gas was carbon dioxide (CO2).
使用便携式红外线气体分析仪对室内新风量进行测定研究,仪器型号为GHX-3010E,示踪气体选取二氧化碳(CO2)。