环行: go in a ring; circumnavigati ...开挖: excavate; working法: law开挖法: excavation method撑板开挖法: poling board method导流开挖法: diversion excavation道洞开挖法: pilot method of excavation顶部开挖法: tocut method全面开挖法: full face method隧道开挖法: tunnel driving method台阶开挖法: benching蘑菇形开挖法: mushroom-type tunneling method全断面开挖法: full-face tunneling method台阶式开挖法: bench method井点排水开挖法: well point method of excavation深孔梯段开挖法: long hole benching隧洞压缩空气开挖法: compressed air method of tunneling挖法: excavation method环行: go in a ring; circumnavigation; circuit 环行一周 make a circuit; 环行层 mixolimnion (指湖水, 海水); 环行岛 rotary; traffic circle; roundabout; 环行公共汽车 bus with a circular route; 环行公路 ring road; belt highway; 环行公路赛 circular road race; 环行供电 loop feeding; 环行路线 belt line; 环行铁路 circuit railway; belt line; 环行线 toroid; belt line; 环行走道 ringwalk开挖: excavate; working◇开挖机 backactor; drag shovel; 开挖设备 excavation equipment; 开挖机械 excavation machinery暗挖法: undermining method明挖法: cut and cover method; open cut method; open surface method行开始: start line明挖法施工: open-cut method浅埋暗挖法: sallow buried-tunnelling method