(A)1/3處 (B)1/2處 (C)2/3處 (D)最高處
(A)0.7MPa (B)0.77MPa (C)0.8MPa (D)1.0MPa
(A)0.07~0.21MPa (B)0.07~0.17MPa (C)0.07~0.1MPa (D)0.07MPa以下