铁路隧道用综合电缆
composite cable for railway tunnel
铺设电缆-电缆铺设
Cable assemblies
cable temination equipment
三车道隧道
Three-lane Highway Tunnel
扫描隧道电子显微镜
stm
scanning tunneling microscope
扫描隧道电子显显镜
stm
scanning tunneling microscope
隧道电力监控系统
tunnel electric power supervisory system