forcing main的用法和样例：
例句
- 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。
