negative lap同重叠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 circuit interlock负电路联锁装置negative population growth人口负增长negative pressure gradient负压差negative skew distribution负偏态分布,负偏斜分布negative switching barriers负面转换障碍negative indefinite pronoun否定性无定指代词negative sequence impedance负序阻抗negative serial correlation负序列相关negative impedance repeater负阻抗中继器negative resistance element负阻元件