distance and dihedral angle constraints are used in distance-geometry and molecular dynamics computations to calculate and refine these structures.

他们将距离和二面角的约束效应运用在距离几何学和分子动力学的计算中使其对分子结构的测定更为精确。

the sintered neck can be calculated exactly in two-sphere model which was perfected by introducing the dihedral angle under three diffusion mechanisms.

在分别考虑三种不同物质迁移机制作用下的双球模型中，通过引入二面角而完善的烧结模型可以精确计算烧结初期烧结颈的大小。

the patterns show that divergence of the emerging beam increases with the dihedral angle offset up to completely separate to six beams;

通过衍射图可以看出出射光束的发散程度随着角度误差的增加而增加，直至完全分离成六束光束。

analysis and improvement of dihedral angle modeling consummate the theory of dihedral angle model, and guidance value of dihedral angle model is enhanced in target detection.

对二面角电磁建模的分析和改进完善了二面角理论，增强了二面角模型在目标检测中的指导性。

in terms of ffdp and velocity aberration compensation theory, a new method of using dihedral angle offset for compensating velocity aberration in large observation range is put forward.

根据远场衍射模式和速差补偿理论，提出了一种在较大观测范围内二面角速差补偿方法。

corner cube reflector(ccr) was widely used, but the automatic test of the dihedral angle error of ccr was not realized.

锥体棱镜应用广泛，但其二面角偏差没能实现测量的自动化。

the problem is discussed, that seeks the size of the dihedral angle by seeking to do the edge of the dihedral angle.

讨论了通过求作二面角的棱来求二面角的大小问题。

the making, adjusting and testing of the corner cube reflector including the measurement and calculation of the dihedral angle errors are presented.

介绍了立方镜的制作、调整及检测方法，偏差角的测量与计算。

there is the larger dihedral angle between benzene ring and nitro group, which is the common experimental phenomenon and has been clarified with the electronic theory in this paper.

本文还从实验和理论上阐明了硝基与芳环间存在较大夹角是分子结构中的常见现象。