The gas main exploded and set fire to the house. 煤气总管爆炸引起房子失火。
Returns to the palace, the small ring jubilant hugs these shrimp to give the jade meals room main pipe Li father-in-law to look. 回到宫里，小环子兴高采烈的抱着这些虾去给玉膳房总管李公公看。
Or the pumps can discharge to a force main conveying wastewater under pressure to the treatment plant. 或崩可以将压力污水干管中的废水在压力下输送到污水处理厂。
With two segments and midsection inflexion of main pipes, the irregular well positions were well represented and the length of the total main pipes was shorten by a long way. 该种管网布置方式是将每个方向伸出的干管分成两段，中间拐弯，能够较好地体现注汽井分布的不规则性。
