A.13m3 B.18m3 C.25m3 D.30m3
A.6.72mpa(10-2mpa) B.13.44mpa(10-2mpa) C.11.85mpa(10-2mpa) D.16.85mpa(10-2mpa)
A.5.02mpa(10-2mpa) B.5.93mpa(10-2mpa) C.7.85mpa(10-2mpa) D.11.85mpa(10-2mpa)