Downsized weapons would probably offer greater utility in less populated areas.减量化的核子武器或许比较适用于可提高它在人口较少的地区.The car makers downsized the suvs when fuel became very expensive.燃油越来越贵,汽车制造商压缩了SUV的产量.Morepeople are downsized,...
Because of their simplicity, bipolar lead systems were the first to be used in clinical electrocardiography.因为它们简单, 双极导联最先用于临床心电图学.Objective To study electrocardiography diagnosis of ischemia in patients with ventricular...