By using this new expression, we derive a perturbation bound for the subunitary polar factor for any unitarily invariant norm.
本文证明了此方程存在唯一的正定解，并推导出此正定解的扰动边界和条件数的显式表达式。
2
While performing their official duties, they shall be dressed in identifiable uniforms, wear unified symbols and produce unitarily printed law enforcement certificates.
在执行公务时，应当穿着识别服装，佩戴统一标志，并出示统一印制的行政执法证。
3
The co-occurrence restrictions between modality and aspect markers can be explained unitarily in terms of the concept distinction between static and dynamic, and that between realis and irrealis.