例句與造句

1. The most important structured finite distributed lag model is the "'Almon lag model " '.
2. In the alternative, second, equation, there are only a finite number of lag weights, indicating an assumption that there is a maximum lag beyond which values of the independent variable do not affect the dependent variable; a model based on this assumption is called a " finite distributed lag model ".
3. In a finite distributed lag model, the parameters could be directly estimated by ordinary least squares ( assuming the number of data points sufficiently exceeds the number of lag weights ); nevertheless, such estimation may give very imprecise results due to extreme multicollinearity among the various lagged values of the independent variable, so again it may be necessary to assume some structure for the relation between the various lag weights.
4. It's difficult to find finite distributed lag model in a sentence. 用finite distributed lag model造句挺難的