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。
The plumber finds no pipe leaks and suspects a mains leak. 水管工没有发现漏水的水管，怀疑是主管道漏水。
Obviously the main fault lies with the old directors. 很明显，主要的责任在于老主管们。
Our main activity this week is planning this project. 我们这周主要的活动是策划这个项目。
But the main reason for action this week was to forestall financial-market panic. 而本周之所以这么做的主要原因是防止金融市场恐慌。
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。
The plumber finds no pipe leaks and suspects a mains leak. 水管工没有发现漏水的水管，怀疑是主管道漏水。
Bypasses are used in steam service for warming up before the main line is opened and for balancing pressure where the lines are of limited volume. 旁路阀用在蒸汽操作中，用于在主管道开启前对其进行预热以及管道数量有限时平衡压力。
