单项选择题
A.一分温度155—160摄氏度;压力≤1.67MPa;Ur58.9%;C3.08%;N7.75% B.一分温度155—160摄氏度;压力≤1.67MPa;Ur56.9%;C3.08%;N7.75% C.一分温度155—160摄氏度;压力≤1.67MPa;Ur57.9%;C3.08%;N7.75% D.一分温度155—160摄氏度;压力≤1.67MPa;Ur60.9%;C3.08%;N7.75%
A.Ur:64.5%;C:0.44%;N:0.7%;H:31.4% B.Ur:65.5%;C:0.44%;N:0.7%;H:31.4% C.Ur:67.5%;C:0.44%;N:0.7%;H:31.4% D.Ur:66.5%;C:0.44%;N:0.7%;H:31.4%
A.Ur:55.9%;C:4.08%;N:7.75%;H:31.27% B.Ur:56.9%;C:3.08%;N:7.75%;H:31.27% C.Ur:57.9%;C:3.08%;N:7.75%;H:31.27% D.Ur:58.9%;C:2.08%;N:7.75%;H:31.27%