负透镜

本文从理论上分析了因孔洞而产生的正透镜或负透镜效应并给出了归一化透过率的表达式。

intermittent negative pressure ventilation

negative definition

negative temperature coefficient thermistor【电】

negative peak peak

negative chemotaxis

negative eugenics; preventive　eugenics

registering of the difference of positive and negative actuation

negative interference