estimation frame的用法和樣例：
例句
- Linear measurement equation and linear static state estimation algorithm based right-angle coordinate are proposed when only PMU measurements are used.
在完全使用相量量測的情況下，提出了基于直角坐標系的實(shí)數形式的電力系統線(xiàn)性量測方程，和相應的線(xiàn)性靜態(tài)狀態(tài)估計算法。 - The model is continued by imposing a polar coordinate system on the moving reference frame.
通過(guò)把極坐標系作為該運動(dòng)參照系而繼續對模式進(jìn)行積分。
