unshutvt.打开unsadj.不对称的unsymmetrical linear molecule不对称线式分子unsymmetrical interdependence非对称相互依赖unscheduled manintenance time出错维修时间unstandared television signal非标准电视信号Unsatisfactory Service Report服务/勤务投诉报告unstructured tetrahedral cell非结构化四面体单元unsupervised machine learning无督导机器学习unsaturated undisturbed loess非饱和原状黄土Unsymmetrical phthalocyanines不对称酞菁Unsatisfactory Feature Report不佳(不满意)特征报告