arbitrary quadrilateral的用法和樣例：
例句
- In this paper, a free vibration study of arbitrary quadrilateral thick plates by the spline least spuare method was presented.
本文用樣條最小二乘法求解任意四邊形厚板的自由振動(dòng)問(wèn)題。 - According to the principles of infinitesimal calculus,a new method on how to ratiocinate the arbitrary quadrilaterals area was put forward.
利用微積分原理給出任意四邊形面積公式推證的一種新方法。
