negative map底片图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 resistance light emitting diode负电阻发光二极管Negative temperature coefficient current负温系数电流negative end-expiratory airway pressure呼气终末气道负压Negative Group Velocity Dispersion Mirror负群速差色散镜Negative contrast cardiac roentgenography阴性对比心脏X线摄影[术]negative temperature coefficient resister负温度系数电阻negative anomalous retinal correspondence偏位异常视网膜对应negative exponent series expansion method负幂指数展开法Negative acknowledgement NLN NS Client.做出否定回答。negative temperature coefficient ceramics负温度系数陶瓷