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  • The center conditions and isochronous center conditions for a class of quasi - analytic systems were investigated.

    研究了一类拟解析系统的中心条件与等时中心条件。

    youdao

  • The center conditions and isochronous center conditions for a class of quasi-analytic systems were investigated.

    研究了一类拟解析系统的中心条件与等时中心条件。

    youdao

  • The center conditions and isochronous center conditions for a class of quasi-analytic systems were investigated.

    研究了一类拟解析系统的中心条件与等时中心条件。

    youdao

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