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。

One of the most important one is its comfortlessness brought by the large temperature range during a day and the unsymmetrical radiation temperature difference.

制约太阳能建筑发展的一个重要因素就是其昼夜温差大,室内热环境不稳定,不能提供一个长期舒适的生活空间。