The paper summarized the research process of variation in body color of Syrphidae.
综述了食蚜蝇科昆虫体色变异方面的研究与进展。
Temperature variation is an important factor affecting ring rolling process.
温度变化是影响环件轧制过程的重要因素。
The condensing process is sensitive to the variation of local flow field.
湿蒸汽两相凝结流中凝结过程对流场参数的变化敏感。
Potential variation of thin oil film in electrolyte is an electrochemical process.
薄层油膜在电解质中的电位变化是一个电化学过程。
The process is of easy operation and accurate results with 0.52% coefficient of variation and 99.97% recovery.
该法操作简单，测定结果准确。 该法的变异系数为052％，回收率为9997％。
The temperature variation in continuous bar rolling process is studied by finite element method.
用有限元法分析了棒材连轧时轧件温度的变化规律。
The temperature variation in continuous bar rolling process is studied by finite element method.
用有限元法分析了棒材连轧时轧件温度的变化规律。
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