N a signal used to warn railway engine drivers in fog, consisting of a detonator placed on the line 雾中警示信号灯
D__ gives listings of all lighthouses, lightships, lit floating marks (over 8m in height), fog signals and lights of navigational significance.
下列哪项出版物列出了所有对航海有影响的灯塔、灯船、灯浮标(高度超过8米)、雾号和雾灯。
When radar signals propagate in the atmosphere, the absorption and scattering of air molecule, aerosol particles, dust and cloud, fog and rain result in energy attenuation of ladar signals.
激光雷达信号在大气中传输时，大气中的气体分子和大气气溶胶粒子、尘埃、雾、雨等对激光信号的吸收和散射导致光信号能量的衰减是影响激光雷达信号传输的重要因素。
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