单词	l-ideal of a lattice-ordered ring
释义
随便看	observability for nonlinear system observability matrix observability of singular system observability rank condition observability rank condition observable canonical form for single output systems observable canonical form for system in polynomial matrix description observational astrophysics observational equivalence observational error observation equation observation matrix observation of unit weight observation spillover observation vector observers for nonlinear system obstruction set obtuse angle obtuse angled spherical triangle obtuse circular cone obtuse dihedral angle obtuse polyhedral angle obtuse spherical angle obtuse triangle obversion

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