A new methodology used to solve the problem of the selection of key thermal points of the CNC machine tool thermal error based on the grey synthetic degree of association was proposed.
针对机床热误差建模技术当中温度布点选取的问题，提出了基于灰色综合关联度进行数控机床热误差建模的关键温度测点选取的新方法。
In the technology of thermal error compensation in NC machine tool, selecting the temperature variables rationally is key for setting the model of compensation.
在数控机床热误差控制补偿技术中，合理选择温度变量，是建立补偿模型的关键所在。
The methods to reduce the machine tool thermal deformation are: thermal error modeling and compensation, temperature control, optimization design of thermal state characteristics.
减少机床热变形的方法为：进行热误差建模和补偿，温度控制，热态特性优化设计。
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