isothermal coordinates

To solve some problems occurred in the isoparametric coordinates,a series of quadrilateral generalized Area-coordinate Quadrilateral Plate(AQP)elements with four nodes and 12 degrees of freedom are successfully constructed by quadrilateral area coordinate method.

为克服等参坐标的缺点,采用四边形面积法构造一系列4节点12自由度的广义协调任意面积坐标四边形薄板(Area-coordinate Quadrilateral Plate,AQP)单元。

In the research of primary spectrum pyrometry,this paper discussed the definition problem of radiation temperature measurement area based on the measurement coordinates.

文章讨论了谱色测温系统研究中,基于测温坐标系的辐射测温区域的界定问题。