短語詞組短語illuminated directional exit sign 出路指示燈牌Directional E Sign 方向標志directional exit sign 指向出口標記advance directional sign 前置指路標志;方向預(yù)告標志;預(yù)告方向指示標志;外加劑Indoor Triangle Directional Sign 室內(nèi)三角形指示牌 返回 directional sign