(A)差壓式質(zhì)量流量計 (B)刮板流量計 (C)科氏力質(zhì)量流量計 (D)葉輪式質(zhì)量流量計
(A)0.2級和0.2% (B)0.1級和0.1% (C)0.1級和0.2% (D)0.2級和0.1%
(A)介質(zhì)密度 (B)體積流量 (C)溫度 (D)上述三項