underground main meaning in Chinese
地下干管
Examples
- The industrial area is generally divided by street blocks of 400m x 400m , bda investors can obtain the supply of what they need from each by only connecting their own installments to the underground mains nearby
工业区路网一般为400m x 400m方格，上述基础设施管网干线在路网下埋设，便于用户接线，只要厂房建成就能迅速投产。