daylight signal meaning in English
白书信号
白昼信号
色灯信号
Examples
- Shipbuilding - portable daylight signalling lamps
造船.便携式昼间信号灯 - Daylight signal mirror
日光信号镜 - Brass gongs ; signal bells ; signalling typhoons ; whistles ; daylight signal mirrors ; and more . .
铜锣,雾钟,号角,口哨,日光信号镜等 - Brass gongs ; signal bells ; signalling ty - phoons ; whis - tles ; daylight signal mirrors ; and more . .
铜锣,雾钟,号角,口哨,日光信号镜等 - 2 the axial luminous intensity of daylight signalling lamps should reach at least 90 % of the maximum luminous intensity
白昼信号灯的轴向发光强度至少应达到最大发光强度的90 % 。