然后把伪逆算子应用在框架理论中，同时给出了预框架算子的伪逆算子的矩阵表示。
The matrix expression of the pseudo-inverse operator concerning the pre-frame operator was provided, and finally the theory of pseudo-inverse operators to some non-frame sequences was developed.
然后把伪逆算子应用在框架理论中，同时给出了预框架算子的伪逆算子的矩阵表示。
The matrix expression of the pseudo-inverse operator concerning the pre-frame operator was provided, and finally the theory of pseudo-inverse operators to some non-frame sequences was developed.
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