nodular cast iron pipes的用法和樣例：
例句
- This paper describes the character of vermicular cast iron pipe and the use of it in the sub-high pressure town gas pipeline.
本文重點(diǎn)闡述蠕墨鑄鐵管的性能和用于城市次高壓煤氣管網(wǎng)的可行性。 - Drains which pass under a house must be of cast iron, the most expsive material for pipe drains.
穿過(guò)房屋下面的排水管道，必須使用鑄鐵管，這是排水管所用的最昂貴的材料。
