道口接近區(qū)段 highway level crossing signal: 道口信號機highway level crossing flashing signal: 道口閃光信號railway highway level crossing signal: 鐵路道口防護highway crossing: 公路交叉;穿越公路; 公路跨越highway approach: 公路引道下載手機詞典可隨時隨地查詞查翻譯