本文提出了应用射电干涉测量的方法测七地球自转的三个参数时，源矢量的最佳分布条件。
An optimum distribution condition of radio sources for the determination of Earth rotation parameters by means of VLBI technique was proposed and explained in detail.
本文对如何选择一类线性分布参数系统(DPS)的最佳测量点作了讨论。
How to select and locate the measurement points optimally for a class of linear distributed parameter system (DPS) is studied.
本方法提供了定量描述磁矩三维择优取向分布的方法和测量参数的实验方法。
This method provides a quantitative description for the distribution of preferred orientation of the moments in three dimensions and a experimental method for measurements of the parameters.
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