A.大于8m B.大于12m C.大于l0m D.大于7m
A.動載系數(shù) B.額定載荷系數(shù) C.吊籠自重系數(shù)
A.作業(yè)指導(dǎo)書 B.施工組織設(shè)計 C.安全技術(shù)交底 D.班組交底