在一个已经铺设好天然气管道，且燃油系统无论如何都要被替换掉的地区，补偿当然是不成问题的。
Of course, payback is not an issue on a system that needs to be replaced anyway in a place where pipelines to gas are already in place.
这座城市甚至还铺设过排水系统，因为在窄窄的街道底下发现了许多陶土制的管道。
The city was even equipped with a drainage system, for a great many clay pipes were found beneath the narrow streets.
管道，管线，管道网一管道系统，如那些用来铺设铅管的。
应用推荐