A.≥0.5MPa B.≥0.6MPa C.≥0.7MPa D.≥0.8MPa
A.2s B.3s C.4s D.5s
A.0+鉤車總軸數×5% B.0+鉤車總軸數×8% C.1+鉤車總軸數×5% D.1+鉤車總軸數×8%