探讨了化油器式汽油机采用电控补充二次空气加三元催化器控制排放的效果。
This paper introduces the application of air supple device and three way catalytic converter to reduce gasoline vehicle emission.
本文探讨了化油器式汽油机采用电控补充二次空气加三元催化器控制排放的效果。
This paper introduces the application of air supple device and three-way catalytic converter to reduce gasoline vehicle exhaust emissions.
采用二次多项式逐步回归分析法建立了三元不对称有机磷酸酯类杀虫剂的多元非线性构效关系回归模型。
Nonlinear multiple regression model on the structure activity relationship of ternary dissymmetric organic phosphate insecticide is obtained by quadratic polynomial stepwise regression method.
利用待定系数法得出了三元二次多项式可进行因式分解的充要条件，并应用这个充要条件解决了两个具体问题。
In this paper a suffitient and necessary condition of factoring on the polynomial of three variables power two is obtained by using undefinite co efficient method.
进一步要求：实现三元二次多项式的乘法。
Further requirements: to achieve quadratic polynomial multiplication.
进一步要求：实现三元二次多项式的乘法。
Further requirements: to achieve quadratic polynomial multiplication.
应用推荐