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undesired specific staining不希望有特异性染色, 非愿望特异性染色unpathogenic microorganisms非病原性微生物微生物uncooled infrared detecting非致冷红外探测unbalance of load impedance负载阻抗的不平衡unclog circulation channels疏通流通渠道unpolluted animal husbandry绿色畜牧业unbalanced Feistel networks非平衡Feistel网络unblocking-acknowledgmentn.解锁认可unguaranteed residual value未担保剩余价值Unconstrained optimizafioin无约束最优化