Among the three fertilizer of n, p, K, the potash fertilizer is mainly depended on import in our country.

我国农业生产所需的N,p,K三大肥料中，钾肥最为紧缺，主要依靠进口。

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Whilst also being able to change the levels of taxation or import duties (Mellahi et al 2005, p. 37).

同时他们也能改变税率和进口关税(梅拉哈等人2005，第37页)。

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The property of import raw cotton is analyzed, and the p hy sical performance index is tested. Single test spinning is also done.

分析了进口原棉的特性，对其物理性能指标进行了测试，并进行了单唛试纺。

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The property of import raw cotton is analyzed, and the p hy sical performance index is tested. Single test spinning is also done.

分析了进口原棉的特性，对其物理性能指标进行了测试，并进行了单唛试纺。

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