matrix equation的用法和樣例：
例句
- These equations are written more concisely as a single columnmatrix equation.
這些方程以單列矩陣方程表示會(huì )更簡(jiǎn)單。 - Based on elementary circuit theorems, the matrix equations for calculating layer currents are set up and some formulas are deduced.
根據電路基本定律，列出了計算各層定流的矩陣方程并推導了有關(guān)的計算公式。
