... 周期不规则性 cyclic(al) irregularity; 周期差 periodic inequality; 周期抽样 periodic sampling; ...
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This paper proves the existence, uniqueness and periodic problem of the solution about second order singular perturbation system by using the differential inequality.
本文用微分不等式证明了二阶奇摄动系统解的存在性、唯一性和周期性。
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