照直走 steady as she goes ; go down ; go straight along ; go straight ahead

按照直线形 direct linear structure

直接照明 direct lighting ; direct illumination ; ddirect lighting ; lighting system direct

照直公开的 aboveboard

垂直面照度 vertical illuminance ; vertical illumination ; Evmin

半直接照明 semi-direct lighting ; semidirect illumination ; lighting system semidirect

电流直接照明 DCEL Direct Current Luminescence ; Direct Current Luminescence

直接照明直照 direct lighting

垂直照明器 vertical illuminator