theory calculation and analysis 理论计算与分析
The reasonable size of twist bar diameter is gotten by theory analysis and calculation.
通过理论分析和计算，得出扭转辊试棒直径的合理尺寸。
Theory analysis and calculation of the rectangular waveguide longitudinal slot arrays are made by using moment method.
利用矩量法对矩形波导宽边纵缝阵列天线进行了理论分析和计算。
Second, classic hydrodynamic theory, least square method and difference method are exerted to cargo pump's mathematic model for theory analysis and calculation.
其次，运用经典流体力学理论对液化气船舶的货泵进行了理论分析，利用最小二乘法和插分法对货泵的工况点进行了求解；
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