嗯,谢谢!我也查了一下,颜色区分应该是这样的:
Red - Electricity
Yellow - Gas, Oil, Steam, Chemical
Orange - Communication, CATV
Blue - Water
Green - Sewer , Storm Drain
Pink - Temporary Survey Markings
White - Proposed Excavation
我印象中应该是黄色。可是Gas管子这么薄岂不很容易破?而且闻了一下也没有气味啊。前端看来都是封住的,难道是废弃的?