Ungun温贡
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
unbalanced structural change不平衡结构改变
undisclosed statistical data未公开统计数据
unconditioned complex reflex非条件复合反射
undirectional solidification不定向凝固
Unbalance voltage protection不平衡电压保护
Unban telephone subscription市内电话预装费
unbiassed important sampling无偏重要性抽样
Unexplained male infertility男性不明原因不育
unlagged endogenous variable非滞后内生变量
unmodulated signal generator未调制信号发生器