短語(yǔ)詞組短語(yǔ)wayside repeating signal 翻譯;沿線中繼號(hào)志wayside signal graphical symbol 線路信號(hào)圖形符號(hào)wayside signal location 區(qū)間信號(hào)點(diǎn)wayside signal aspect 地面信號(hào)顯示 返回 wayside signal