A.取土→運輸→平地機整平→推土機初平→壓路機碾壓 B.取土→運輸→推土機初平→平地機整平→壓路機碾壓 C.取土→運輸→壓路機碾壓→平地機整平→推土機初平 D.取土→運輸→平地機整平→壓路機碾壓→推土機初平
A.80B.100C.150D.200
A.泥炭 B.強膨脹土 C.凍土 D.腐殖質(zhì)的土