NH4NO3 used to be the main raw material for producing nitrate-compound fertilizer.

硝酸铵是硝基复合（混）肥生产的主要原料。

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With spinach to be the main raw material, this paper investigated the methods of valuating fruit and vegetable paper quality.

探讨了以菠菜为主要原料，探讨果蔬纸的加工方法。

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Very weak exports have continued to be the main drag on growth, while import volumes have recovered in the second quarter of 2009 as raw material imports rebounded.

出口疲软继续拉低增长速度，但随着原材料进口回升，2009年2季度进口量得到恢复。

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