negative AGC反向自动增益控制negativeadj.否定的；消极的；负面的；负的n.否定；反面意见；底片；[数]负数vt.否定negative photodiode coupler负型光电二极管耦合器negative assortative mating选异交配negative aero-ion therapy空气负离子疗法Negatively associated series负相关序列negative transfer in culture文化负迁移negative sloping yield curve负斜度收益率曲线Negative - pressure syphon负压吸水管Negative for recurrent tumor无复发肿瘤negative impedance amplifier负阻抗放大器negative pressure irrigation负水头灌溉