state - space method的用法和樣例：
例句
- This paper attempts to implement the Eigen-subspace method, the basic method among subspace methods, using FPGAs.
本文則側重於子空間法中特徵子空間法的實現研究。 - This paper starts frome laborating the basic algorithm of octree,and then chooses the boundary representation method to construct the geometry.
首先闡述了傳統八叉樹的基本思想，根據八叉樹分解空間法的基本特點選擇邊界表述法進行前處理中的實體建模。
