Rational intercropping can increase not only crop yields, but also iron absorption and utilization and diseases control.

合理间作不但有提高作物产量优势，而且铁的吸收利用效率也会提高，对病害控制有所加强。

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The sponge iron making with iron sludge produced during DSD acid-making can be used for not only general metallurgy but also iron-carbon bed to treat DSD acid oxidation wastewater.

利用DSD酸生产过程产生的铁泥，研制出既能用作常规冶金原料，又能用于处理DSD酸氧化废水的水处理用海绵铁。

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Not only can the art bring happiness to others, but it also shows that even cold, hard iron can be back to life with a little creativity.

艺术不仅可以给别人带来快乐，而且它还表明，即使是冰冷、坚硬的铁，也可以用一点创造力恢复生机。

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At a minimum that means not only having hotlines between the two governments, but also cast-iron commitments from the Chinese always to pick up the phone.

ECONOMIST: Japan and China

Up to 10, 000 people were employed in the mining industry but also at the Kirkless iron and steel works.

BBC: Nature plan for ex-steel works in Wigan

But there have also been concerns about its Minas Rio iron ore project in Brazil, as well as problems in its Chilean copper operations.

BBC: Cynthia Carroll