1) dihedral angle
二面角
1.
Theoretical comparative studies of the dihedral angle andtorsional barriers for 4,4′-bipyridine;
4,4′-联吡啶二面角和扭转势垒的理论研究
2.
The Inclined Angle Calculation of the Cutting Tool for Machining a Dihedral Angle by a Tapered Grinding Wheel;
锥形砂轮刀具加工二面角时刀具倾角的计算
3.
Some relations between dihedral angle and vertex angle of multidimensional simplex;
高维单形二面角与顶点角的若干关系
2) dihedral
[英][dai'hi:drəl] [美][daɪ'hidrəl]
二面角
1.
Calculation results reveal that the dihedrals formed by the aromatic ring and heterocyclic plane, contributions of carbon atoms labeled as 3, 4 and 5 in the aromatic ring to HOMO orbital, and the sum of net atomic charges born by these atoms may be significant to the biological activities of these compounds.
结果表明,芳环3,4,5号碳原子对HOMO轨道的贡献和芳环上3,4,5号碳原子的所带的电荷之和芳环与杂环间的二面角对化合物的活性影响最为重要。
3) interior dihedral
内二面角
1.
C stand for the three interior angle of triangle ABC" to n-dimensional simplex field and gets another class of inequality about dihedral angle: here,, is interior dihedral angle of leteral face F, and F,, m, n is arbitrary natural number.
假定Ｅ中非退化单形Δｎ的顶点集Ｓ＝｛Ｐ１，Ｐ２，…，Ｐｎ＋１｝，表示顶点Ｐｉ所对的ｎ－１维侧面，表示侧面Ｆｉ与Ｆｉ所夹的内二面角，即则有下面结论：m为任何自然数；等号当Δｎ为正则单形时取得。
4) dihedral,dihedral angle
二面角<测>
5) plane dihedral angle
平面二面角
6) gle of a dihedral angle
二面角的平面角
补充资料：二面角
从一条直线出发的两个半平面所组成的图形。这条直线称为二面角的棱，半平面称为二面角的面。以二面角棱上任意一点为端点，在两个面内分别作垂直于棱的两条射线，它们所组成的角称为二面角的平面角。二面角的大小，可用它的平面角来度量。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条