作者: angusyangruo 时间: 2009-2-8 02:26
Many cities and communities have traffic circles—from large ones with many lanes in the circle (such as at the Arc de Triomphe in Paris and the Victory Monument in Bangkok) to small ones with one or two lanes in the circle. Some of these traffic circles position a stop sign or a yield sign on every incoming road that gives priority to traffic already in the circle; some position a yield sign in the circle at each incoming road to give priority to incoming traffic; and some position a traffic light on each incoming road (with no right turn allowed on a red light). Other designs may also be possible.作者: taixiangjin 时间: 2009-2-8 02:29
都是高手呀！！！！作者: carriecxh 时间: 2009-2-8 02:38
ding~~~~~~~~~~作者: xiao_chai 时间: 2009-2-8 02:44
看过的飘过~~~作者: l353869750 时间: 2009-2-8 02:48
fffffffffffffffffffffff作者: l353869750 时间: 2009-2-8 02:48
ffffffffffffffffffff作者: 华/ty 时间: 2012-1-15 16:12
待机能耗_一个不容忽视的问题.pdf作者: 3点一直线 时间: 2012-2-4 20:14
好 很好 我看看作者: 豆哥bean 时间: 2012-2-6 10:36
好东西啊啊啊
