unsvcadj.不能使用的；不适用的；没用的adj.运转中不安全的；不耐用的；使用不可靠的unsadj.不对称的unsweetened juice不加甜味料的汁unstructured exit非结构出口unstalled turbine无失速叶片unsold vegetables值班菜unsplit crankcase整体式曲轴箱unstructured grid非结构网格unshared electronn.未共享电子unselected needle未选织针unshrinkable wool防缩羊毛unsaturated ether不饱和醚