控制能量摄入和调节的因素目前并未完全清楚，但已知的部分提示这是一个复合的庞杂的系统。
The factors that control energy intake and regulation are incompletely understood, but what is already known indicates a complex and redundant system.
摘要：农林复合系统的侵蚀控制效益是在小流域整治规划中必须考虑的重要因素。
Abstract: The effect of erosion control by agroforestry is an essential factor of little catchment planning.
本论文采用控制单一变量测定电阻率的方法对影响复合材料导电性的因素进行了研究。
The effect of a single variable on the composite volume resistance by maintaining other effect factors constant is analyzed respectively in the thesis.
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