unsetadj.未装配的(不固定的)vt
unsadj.不对称的
unshrinkable steel不收缩钢
unsimplified Hanzi
unsatisfied demand未满足的需求
unstiffened joints相贯节点
unsplit crank case整式曲柄箱
unscrambled method非杂乱法, 有序法
unsymmetrical fold不对称褶皱
unsymmetrical load非对称性负载
unsymmetrical plan不对称平面
unstablize testing不稳定试井