absence light是什么意思

网络释义

1)absence light,灭光(灯塔用)2)splash beacon,闪光灯塔3)laser lighthouse,激光灯塔4)lighthouse oil,灯塔用油5)blackout,灯光转暗;灭灯6)light range from the lighthouse,灯塔灯光射程

Study of light range from the lighthouse in China;

对我国灯塔灯光射程问题的研究