萨尔瓦多一年生产10万吨精炼铜。
El Salvador produces 100,000 tons of refined copper annually.
需要30万吨谷物才能重新装满仓库。
Three hundred thousand tons of cereals are needed to replenish stocks.
《华尔街日报》每年使用22万吨新闻纸。
The Wall Street Journal uses 220,000 tonnes of newsprint each year.
Aluminum is 25 million tons per year for the whole planet.
铝的产量为每年2500万吨,全世界。
Magnesium was 60,000 tons.
镁的产量为每年6万吨。
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