词语视觉信号
解释visible rays
visible rays〔名词〕可见光线详细»
visible rays〔名词〕可见光线;n.视觉信号详细»
视觉信号visual signal详细»
视觉信号〔名词〕visual signal详细»
视觉信号visible signal;visual signal详细»
视觉信号visible signal详细»