On such a basis, a performance function based on the shear strength envelope curve in the shape of quadratic parabola was established.
在此基础上，建立了基于二次抛物线形抗剪强度包络线的功能函数。
The equabions on tooth shape of internal gear by means of envelope method is derived and the pressure angle, inflection point, curvature, topcut are analysised in detail.
用包络法导出了内齿轮的齿形方程，对压力角、曲率、拐点、顶切进行了详细分析，并给出了计算公式。
Two scheme for envelope with FXS80 pairs of air outlet shape rotor select the powder machine.
方案二为用FXS80 双出风口笼形转子选粉机。
Studies the influence of the reform of envelope construction, variation of shape coefficient and increase of ventilation rate on t…
研究了围护结构性能改进、体形系数变化及换气次数增加等因素对建筑全年空调、供暖能耗相对变化率的影响规律。
Studies the influence of the reform of envelope construction, variation of shape coefficient and increase of ventilation rate on t…
研究了围护结构性能改进、体形系数变化及换气次数增加等因素对建筑全年空调、供暖能耗相对变化率的影响规律。
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