unsown地里没有撒播的
unsadj.不对称的
unsaturated expansive soil非饱和膨胀土
Unscheduled Engine Removal计划外发动机拆迁
unstressed length of eable无应力索长
unsymmetrical oscillations不对称振荡
unsatuated polyester rosin不饱和聚酯
unshunted hot-wire meter无分路式热线仪表
unstructured overset grids非结构重叠网格
unsaturated expansive clay非线性模型
unsparingly criticize sb.毫不留情地批评某人