【摘要】 通过对常见的几种标准或计算方法进行比较和分析,提出各种阻力系数的合理取值范围以及功率计算中安全系数和备用系数的选取原则。更多还原

【Abstract】 Based on comparing and analyzing several actual standard computing methods,the reasonable sampling scope of several drag coefficients and selection principle of safety coefficients and back-up coefficients in performance calculation are provide.更多还原