A.120mm厚墻 B.寬度為1.2m的窗間墻 C.料石清水墻 D.加氣混凝土墻
A.5%~10% B.5%~15% C.10%~15% D.15%~20%
A.光電測距儀、電子水準(zhǔn)儀 B.電子經(jīng)緯儀、光電測距儀 C.光電測距儀、激光鉛直儀 D.測角設(shè)備、測距儀