常見(jiàn)例句雙語(yǔ)例句Based on the boundary variational theorem, the energy release quantity and energy release rate(dynamical crack extension force) along the crack boundary are obtained.由此求得動(dòng)態(tài)裂紋擴(kuò)展時(shí)，沿裂紋邊界的能量釋放量和能量釋放率（動(dòng)態(tài)裂紋擴(kuò)展力）。 返回 crack extension force