Processing iron ore, timber or oil requires electricity, and 80% of China's electricity comes from coal.
加工铁矿、木材或石油需要电力，而中国80%的电力来自煤炭。
The big iron was the enterprise system by default, as no other technologies could match its processing capabilities.
超大型计算机（big iron）是缺省的企业系统，其它任何技术的处理能力都无法与它相比。
Processing materials are stainless steel, copper, aluminum, iron and so on.
加工材质有不锈钢、铜、铝、铁等。
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