双光束激光二极管dual beam laser diode
【计】 双隙写后读磁带头dual-gap read-after-write tape head
胃气阴两虚dual vacuity of stomach qi4 and yin1
双动源无轨电车dual-powered trolley bus【车辆】
双衰变dual decay
阴阳两亏dual depletion of yin1 and yang2
双重人格dual personality
双识别假说dual recognition hypothesis