The object aimingmechanism must face the poor farmers household directly;
对象瞄准机制要直接面向贫困农户；
2
Aiming to the feature of every view model, we adopt corresponding extension mechanism of UML to describe it.
针对每个视图模型的特点，采用相应的UML扩展机制对其进行描述。
3
Aiming at the modeling mechanism and limitation of traditional grey model, puts forward the improvement method, and sets up the new electric power load forecast model.