单质分子和氮化物与卤化物，其核间距与力常数都表现有相似的行为。
The internuclear distances and force constants of the elementary molecules as well as of the nitrides and halides, exhibit a similar behavior.
建立了偶极矩、核四极矩偶合常数中的场梯度及晶体非线性光学系数的近似理论表达式。
Approximate theoretical expressions are given for dipole moment, field gradient at the nucleus, and nonlinear susceptibility of crystals.
测取了分子中各磁性核之间的偶合常数，并依靠这些数据解释了有关谱峰的形状特点；
The coupling constants between mag- netical nuclei were measured, by which the related peaks' shape was explained.
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