negative die阴模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 Positive Zero负正零negative-index media负折射媒质negative pressure sink负压沉贯negative-power model负乘幂模型negative interest rate负利率negative-phase relay反向继电器,负向继电器negative ion generator[计] 负离子发生器negative feedback link负反馈链negative polarity zone阴极区negative confining bed负承压底层