They isolated the importance of temperature by studying only female beak length and comparing species with similar diets living in different climates.
为了将温度的重要性孤立来看，他们只研究雌鸟的喙长，并将生活在不同气候但拥有相似食性的鸟类进行对比。
By studying and comparing the legal position of managers in domestic and foreign laws, the author thinks this problem is caused by some flaws in domestic laws.
本文通过对国内外有关经理人法律地位的考察和比较，发现问题的症结在于我国立法上的某些缺陷。
It is proposed by hierarchy analysis that it is beneficial for studying the Marine hydrocarbon accumulation rules and also comparing them as a whole.
油气成藏要素层次性分析方法的提出，有利于从整体角度研究中国南方海相油气成藏规律、也有利于对比南方不同地区油气成藏规律。
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