A.P=Pb-Pe B.P=Pe-Pb C.P=Pb+Pe
A.應(yīng)高于600°C B.應(yīng)保持恒溫 C.應(yīng)高于1150°C D.應(yīng)低于600°C
A.損失取壓 B.法蘭取壓 C.理論取壓 D.角接取壓 E.任意取壓