要提高中国油菜的竞争力，关键是要提高中国油菜的品质、降低生产成本和加强油菜的综合利用。

The key points are to increase the quality of China's rape and reduce the production cost and strengthen the comprehensive utilization in order to improve the competitive power of China's rape.

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加强对矿渣综合利用。

To improve the multipurpose utilization of slag.

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指出加强其应用基础研究，是镁资源综合利用的一条重要途径。

It was pointed out that promoting its applied fundamental research was an important way to boost the comprehensive utilization of magnesium resources.

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