高剂量率后荷式近接疗程
high dose rate brachytherapy HDR
近接舰飞支援舰线
close gunfire support ship line
近接施工
adjacent construction
Approaching excavation
close-space construction
Approaching construction
construction near to tunnel
construction
tunnel boring close to existing structure
neighboring tunneling
excavating close to structures
近接下穿施工
Under-passing with small distance