A.1/5 B.1/3 C.1/2 D.3/4
A.0.15% B.0.2% C.0.25% D.0.45%
A.P絕=P表-P大氣壓 B.P絕=P大氣壓-P表 C.P絕=P表+P大氣壓 D.P絕=P表+P大氣壓+0.1MPa