So "historians cannot put aside specific object" instead should be "recorded historians cannot put aside specific object", study they is very necessary in history, but not be all historians.
所以历史学家却不能撇开具体的客体应改为：记载历史学家却不能撇开具体的客体，他们在历史学的研究中是非常必要的，但绝不是历史学家的全部。
The research object of this paper is cadres quality system and some experimental exploration is made on how to make specific study and analyses on complex system.
论文以干部队伍素质系统为研究对象，对如何具体分析研究复杂系统进行了尝试性探索。
In connection with specific geological conditions and study object, we need choose appropriate method to measure permeability coefficient.
针对具体的地质条件和研究对象，需选择合适的渗透系数测量方法。
In connection with specific geological conditions and study object, we need choose appropriate method to measure permeability coefficient.
针对具体的地质条件和研究对象，需选择合适的渗透系数测量方法。
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