Unraun.昂劳
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
unmanned powered parachute aircraft无人动力伞
Uncooled infrared focal plane array非制冷红外焦平面探测器
unformed point-contact transistor未经冶成的点接触晶体管
Unmanned Reconnaissance Air Vehicle无人侦察空中飞行器
unconformity-type uranium deposit不整合面型铀矿床
UnJversity of Finance and Economics财经院校
unweighted signal-to-noise rato未加权信噪比
uncontrollable diesel generator set不可控柴油发电机组