UNSCOMn.联合国特委会
unsadj.不对称的
unstructured flow diagram非结构化流程图
unsymmetrical oscillation非对称振荡
unsaturated oil reservoir未饱和油藏
Unstructured control flow非结构化控制流
unsymmetrical leaf spring非对称片簧
Unsaturated water in soil非饱和土壤水
unspecializafion of human人的未特定化
Unsemmetric azo compounds不对称偶氮化合物
"his doom is as yet unsealed"
"unsealed goods"
"the letter arrived unsealed"