The study of the approximate analytical methods on the roll shells temperature field in the continuous roll casting;
在分析铸轧辊套传热特征的基础上，对铸轧辊套温度场进行了数学描述。
The paper presents the approximate analytical methods for free vibration of tall buildings of frame, shear-wall and frame shear-wall structures.
本文研究框架、剪力墙及框架-剪力墙结构自由振动的近似计算方法。
The excessive and tedious mathematical deduction involved in an approximate analytical methods for 1/3 subharmonic ferroresonance makes many technicians to shrink back.
研究1/3次分频铁磁谐振的近似解析方法常因涉及过多的繁琐数学推导而使众多技术人员望而生畏。
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