They hold river sand, pieces of iron and charcoal.

他们装设有水沙子, 铁片和木炭.

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They hold river sand , pieces of iron and wood charcoal.

在一段很长的时期内,毒井中的水可能会导致致命的癌症.

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It degrades fertile agricultural land, depleting river sand and water burning of bricks.

它使肥沃的农用土地退化, 耗尽河沙河水.

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The industry waste slag fly ash or the river sand is used as the siliceous material.

工业废渣粉煤灰或河砂一般被用来作为硅质材料.

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G manual magnetic ore separator: Uses the artificial high - quality goods the river sand magnetic separation machinery.

G人工磁选机: 利用人工上料的河沙磁选机械.

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