“生铁”造句

生铁可含百分之四的碳.
Pig iron may contain 4％ of carbon.

独立战争前夕，北美十三州每年生产3万吨生铁。
On the eve of the Revolution, the colonies produced thirty thousand tons of crude iron a year.

并非一概如此 — 例如从低级铁矿石中生产生铁和钢材的情况一但是这导致了工业发展集中在煤田上.
This is not always true - as with the manufacture of pig iron and steel from low - grade iron ores - but it did lead to the concentration of industrial developments on the coal fields.

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