视线: sight line; line of sight; o ...距: distance视线距离: line-of-sight distance; optical range; sighting distance视线距离界限: line-of-sight boundary无线电视线距离: radio optical line of distance; radio optical range线距: distance between stitchings; line space; line spacing; linespacing; wire pitch视线: sight line; line of sight; optical line of sight; sight焊线距: pitch of weld路线距: route spacing炮线距: perpendicular offset细线距: fine pitch中线距: center line distance视线视线: line of sight等视线: visual isopter电视线: pal; super-v; tvl迹视线: trail sight监视线: pilot wire检视线: sightline可视线: visibility视线, 视轴: visual line视线,视轴: visus linea视线，光线: opt视线板: vision panel视线报: pogled视线法: line of sight method
