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Gainet盖内gainn.获得；收益；增益v.获得；到达；增加；获利；(钟、表等)走得快gain frequency function增益频率函数gain on insurance claim保险索赔收益gain of photomultiplier光电倍增管增益gain on bond retirement[经] 偿还债券收益Gain Useful Information信息化gain controlleamplifier增益可控放大器gain general acceptancevt.获得公认gain-limited receiver增益受限接收机gain converting circuit增益变换电路gain crossover frequence增益交越频率; 增益窜渡频率