A catalyst based on non noble metal oxides for catalytic oxidation of volatile organic compounds (VOC) in waste gas has been developed.

研制出用于催化氧化废气中挥发性有机化合物(VOC)的非贵金属氧化物催化剂。

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In industry, transition-metal oxides are used as versatile catalysts in many applications, however, for some processes their reactivity is too high and non-specific product formation occurs.

在工业上，过渡金属氧化物在很多方面被用做多用途的催化剂，但对有些反应其活性太高得不到预期的产品。

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Type MYG Varistors are made of semiconductor ceramic materials composed mainly of zinc oxides. They have non-linear resistance that changes as a function of applied voltage.

型压敏电阻器是以氧化锌为主要原料制造的半导体陶瓷元件，其电阻值随施加电压的变化而呈非线性变化。

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These include the exhaust gases such as nitrogen oxides (NOx), non-methane volatile organic compounds (NMVOCs), and carbon monoxide (CO).

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