Recent research results of the direct conversion of methane to aromatic are summarized.

总结了近几年来刚刚开展的甲烷直接转化制取芳烃方面的研究结果.

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Direct conversion of electric energy to light by a solid phosphor subjected to an alternating field.

说明有关通过交变电磁场来实现的传输(无线电波、光).

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The direct conversion architecture reduces system cost compared to devices with IF - based architectures.

直接变频体系机构与中频建立体系机构相比减少了体系代价.

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