“生鐵”造句

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

獨立戰(zhàn)爭前夕，北美十三州每年生產(chǎn)3萬噸生鐵。
On the eve of the Revolution, the colonies produced thirty thousand tons of crude iron a year.

并非一概如此 — 例如從低級鐵礦石中生產(chǎn)生鐵和鋼材的情況一但是這導致了工業(yè)發(fā)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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