closely approximating的用法和樣例：
例句
- There are close to approaching Butterworth, Chebyshev approximation, elliptical and Bessel close approximation.
逼近方法有巴特沃思逼近，切比雪夫逼近，橢圓逼近和貝塞爾逼近。 - This paper presents an asymptotic approximating solution for the internal forces of the board under loads by using the method of weighted residuals.
提出一種用加權殘數法求解均布荷載作用下四邊固支板內力的逼近解法。
