Double-strength Coffee杯

double-shear strength双剪强度

double-strength pipe高强度管

double-shear strength theory双剪强度理论

double-strength nutrient broth双倍浓营养肉汤

double-shear unified strength theory双剪统一强度理论

double-shear-stress strength theory双剪应力强度理论

theory of double-shear yield strength双剪屈服强度理论

double w-n gear strength双圆弧齿轮强度