牵引力公式

coefficient of tractive resistance effort tractive formula of capitalization formula of bill formula of integration formula of connections formula of reduction inversion formula of Fourier formula for translation of axis quadrature formula of close type tractive effort gross tractive effort starting tractive effort hourly tractive effort effevtive tractive effort maximum tractive effort continuous tractive effort effective tractive effort Effort function of larynx principle of least effort Center of Effort index of cardiac effort