Heavy industry describes the companies or factories that make heavy products. 重工业是指生产重工业产品的企业或工厂。

　　Examples of heavy products are automibles, buildings, ships and any other products made from metal. 汽车、建筑、轮船和其它金属制品就属于重工业产品。

　　In addition, heavy industry also includes companies that make parts of such products like pipes, machines or construction equipment. 此外，重工业还包括生产诸如管道、机械或施工设备零部件公司。

　　Heavy industrial firms usually need a lot of workers and large machines. 重工业企业通常需要很多工人和大型机器设备。

　　So, they need a huge area of land. 因此，它们需要大面积的土地。

　　Therefore, you can find cities made just for heavy industry in many countries. 所以，你能在很多国家找到专门的重工业城市。

　　If those firms close, many people will lose their jobs. 如果那些企业倒闭了，那么很多人就会失业。