-
1.The mining company is looking for a complex iron ore deposit to expand its operations.
该公司正在寻找一个复杂的铁矿石矿床以扩大其业务。
-
2. The complex iron ore mine has been closed due to safety concerns.
由于安全问题，这个复杂的铁矿石矿场已经关闭了。
-
3. The processing of complex iron ore requires advanced technology to extract valuable minerals.
处理复杂的铁矿石需要先进的技术来提取有价值的矿物。