arbitrary quadrilateral

• 任意四边形

arbitrary quadrilateral的用法和样例：

例句

1. In this paper, a free vibration study of arbitrary quadrilateral thick plates by the spline least spuare method was presented.
   本文用样条最小二乘法求解任意四边形厚板的自由振动问题。
2. According to the principles of infinitesimal calculus,a new method on how to ratiocinate the arbitrary quadrilaterals area was put forward.
   利用微积分原理给出任意四边形面积公式推证的一种新方法。