Designed a set of electro-hydraulic proportional system of forming hydraulic press of heteropolarity multilevel magnetic ring, established the mathematical model of the top plunger cylinder.
设计了极异方型多级形液压机电液比例统,建立了上模缸上腔数学模型。
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These adaptive changes appear to have strengthened interindividual affiliation, increased male-male tolerance and facilitated the stepwise aggregation from independent one-male, multifemale groups to large multilevel societies, the article said.
文章说,这些适应性变化似乎强个体间的联系,增性-性的容忍度,并促从独立的多女群体逐步聚集到大型多层次社会。