The separating circle and separating strip of the maximum plane graph are defined.
定义了极大平面图的分离圈和分离带,并讨论了一些简单的平面图的着色问题,又给出了一类4-可着色的极大平面图。
Twelve or thirtheen peaks have been recognized and their assignment are confirmed to CH stretching bands in the 3100-2800cm-1 range for coals and macerals in Hailar Basin, using diffuse reflectance infrared spectroscopy and spectra separating technique.
利用红外漫反射光谱和谱带分离技术,从海拉尔盆地煤及其显微组分的红外漫反射光谱图中,在3100—2800cm-1范围内分辨出12或13个峰,并确认了结构归属。
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号