A.剪切 B.拉伸 C.压缩 D.弯曲
A.WL B.LL C.TL D.JL
A.WB B.KB C.GB D.CB
A.1%~2% B.2%~3% C.3%~5% D.5%~6%
A.4m B.5m C.6m D.7m
A.3m B.4m C.5m D.6m
A.长宽比 B.长高比 C.宽高比 D.坡高比
A.板式楼梯 B.梁式楼梯 C.旋转楼梯 D.室外楼梯
A.10~30mm B.30~70mm C.70~90mm D.90~120mm
A.20~30mm B.30~40mm C.40~50mm D.50~60mm
A.60mm B.50mm C.40mm D.30mm
