A.±0.001 B.±0.002 C.±0.003 D.±0.004
A.-170.92 B.-104.30 C.104.30 D.170.92
A.1/25000 B.1/25 C.1/2500 D.1/250
A.m B.dm C.cm D.mm
A.屋面顶层楼梯间，维护结构高2.5m B.深基础架空层，净高2.5m，设计不利用 C.不封闭的挑阳台 D.未封闭的通廊
