架空标志 meaning in Chinese
overhead sign
Examples
- On wide busy roads , and particularly on expressways and other trunk roads , signs may be placed on gantries above the road
在繁忙的大路上，特别是在快速公路及其他主干路上，可能设有架空标志。 - Illustrated are lane control signs usually mounted on gantries above the road and signals mounted on the roof of the tunnel
图中所示的行车限制性标志，通常见于路上的架空标志牌。至于信号灯，则装置在隧道顶部。