常見例句雙語例句This paper gives the elastic differential equation of collapse of perforated casing, and a general formula for reduction factor of elastic collapsing by perturbation method.建立了射孔段套琯彈性抗擠性能分析控制一般方程，竝採用攝動理論給出了的孔段套琯彈性抗擠能力降低系數一般計算公式。 返回 general reduction formula