A.渦輪流量計 B.渦街流量計 C.轉(zhuǎn)子流量計 D.超聲波流量計
A.(0.2,0.4] B.(0.4,0.8] C.(0.8,1.6] D.(1.6,2.5]
A.1.7 B.2.0 C.2.2 D.2.5