In each case there is an obvious correspondence between the object and some entity in the real world (or at least a mathematical world).
在这些例子中，类的对象与现实世界(或者至少是数学世界)中的一些实体都有显著的对应关系。
2
A mathematical model is established and validated with computer imitation. The results show that the method can effectively improve accuracy of object position and reliability.
建立其数学模型，并进行计算机仿真验证，其结果显示出该方法可以有效地提高目标的位置精度与可靠性。
3
In analogy to algebraic data type theory, this paper proposed the mathematical model of objects, object types and abstract object types.