On this basis, it emphasized how to establish the node basic information database and the restricting relation database, and constructed out the mathematic model of the planar linkage mechanism.
在此基础上，着重阐述了如何建立结点基本信息数据库和约束关系数据库，从而构造出平面连杆机构的数学模型。
The quantity relation (mathematic model) of use time pricing between selling side and generating side is studied and established.
研究并确定上网侧和销售侧峰谷分时电价的数量关系（数学模型）；
Under the situation of even distribution of fitting nodes, a mathematic model is established by means of the relation between the number of fitting nodes and the limit error of measurement.
建立了采样点均匀分布情况下，圆度误差测量采样点数量与测量极限误差之间的定量关系数学模型。
Under the situation of even distribution of fitting nodes, a mathematic model is established by means of the relation between the number of fitting nodes and the limit error of measurement.
建立了采样点均匀分布情况下，圆度误差测量采样点数量与测量极限误差之间的定量关系数学模型。
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