calorimetric flowmeter
英
美
- A constant-current hotwire flowmeter for measuring tiny gas flow was researched.
研制了测量微小气体流量的恒流型热线式流量计，对电路进行了设计与研制。
- The metering of natural gas still presently depends on orifice flowmeter,one of differential pressure flowmeters.
天然气计量现在仍以差压式流量计中的孔板流量计为主。
