Gainon盖农gainn.获得；收益；增益v.获得；到达；增加；获利；(钟、表等)走得快gain admission to a school获准入学gain returns on investment投资收入gain on disposal of assets处分资产溢价收入gain of secondary electron二次电子增益gain entrance to ...进入 ...gain-crossover frequency增益窜度频率gain on exchange of assets[经] 调换资产收益gain coefficient of medium媒质增益系数gain admittance to a place进入某处gain-sensitivity control增益灵敏度控制