negative definition
消极优生学
negative eugenics
又称“预防性优生学(preventive eugenics)”。研究如何 降低人群中产生不利表型的基因频率,以改善人类的遗传素 质的科学。
相关词条
negative peak peak
negative chemotaxis
negative electrode
registering of the difference of positive and negative actuation
negative inotropic action
negative interference
negative element