耶基斯国家灵长动物研究中心的科学家对七只雌性黑猩猩做了测试，验证对该物种的实地观察是否与实验室结果吻合。
Scientists at the Yerkes National Primate Research Center tested seven female chimpanzees to see if observations of the species' generous behavior in the field matched their decisions in a lab.
通过在内蒙古图牧吉自然保护区的实地观察，研究了大鸨在繁殖期的领域行为。
Through herding observation on the spot of the lucky nature reserve in the Inner Mongol picture, have studied the big bustards domain behavior in breeding period.
通过问卷调查、实地观察、访谈等调查方法对石家庄市综合性公园进行实例研究。
Through questionnaires, field observations, interviews and other methods of investigation of the Comprehensive Park, Shijiazhuang City case study.
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