UNMIL联合国利比里亚特派团
UNabbr.(=United Nations) 联合国pron.<口>人,事物,家伙,东西
undesground water pipelines地下输水管网
unbar the channels of trade使贸易渠道畅通
unbalance of the two powers力量失衡
uncontrolled system balance系统均衡失控
unbiassed confidence region无偏置信区域
Unconstrained optimizations无约束最优化
unprocessed primary product未加工的
unversal soil loss equation韦斯曼(USLE)方程
undisturbed-zero-output[计] 不干扰"0"输出
unbilled medical charges.未结算的医疗费用