阴

青年亚文化中既有对社会的进步和发展有积极意义的成分，也存在不利于社会进步的不和谐音。

negative-phase-sequence component ammmeter

negative definition

negative temperature coefficient thermistor【电】

gram negative bacilli

negative peak peak

negative chemotaxis

negative eugenics; preventive　eugenics

registering of the difference of positive and negative actuation