By chemically extracting nickel form the ash, they produced 100 pounds of nickel per acre of land at a total cost per pound slightly above that of current mining.

通过化学方法从灰烬中提取镍，他们每英亩土地生产了100磅镍，每磅的总成本略高于目前的采矿成本。

youdao

He removed the cigar, knocking off the ash.

他取出雪茄，敲掉烟灰。

youdao

If the ash cloud were to drift in another direction, flights could be sent around or above it.

届时如果火山灰云飘向另一个方向，飞机可能会被指示绕开或在其上方飞行。

youdao

After thousands of years the ash became a soft rock.

VOA: special.2010.07.05

Macpherson says the ash cloud is not unusual nor is the eruption of the volcano after 200 years of dormancy.

VOA: standard.2010.04.15

The United Kingdom Health Protection Agency warned that the ash could cause itchy eyes,a runny nose, sore throat or dry cough.

VOA: standard.2010.04.16

He also says the ash, which was everywhere around their home, covered their cars.

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The ash byproduct is turned into 100 percent-recycled wallboard for use in home construction.

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She took the ash pan out to the yard, not saying anything before she went.

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