... active transport 主动转运... active valence 有效化合价... active volume 可用容量;活动容量有效体积...
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... 有源换能器 active transducer 有效价 active valence 活度系数；活性系数 activity coefficient ...
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active valence state 活性价态
active e valence 有效化合价
valence state of active composition 活性组份价态
·2,447,543篇论文数据，部分数据来源于NoteExpress
By using XPS, before and after the intoxication of mixed oxide catalysts, the various appearance and the composition. valence and chemical mechanism of the active component of catalysts were studied.
运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
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