iron and steel plants

• 钢铁企业

iron and steel plants的用法和样例：

例句

1. The steel trusts merged various small businesses.
   钢铁企业联合兼并了许多小企业。
2. In the first quarter,these steel firms operated at below 80 per cent of capacity.
   在第一季度，这些钢铁企业开工率不到百分之八十。