cubic convergence

例句：

1. 1. The shape of the crystal is cubic, meaning it has six sides.
   晶体的形状是立方的，意味着它有六个面。
2. 2.In physics, a cubic convergence occurs when the volume of a solid increases with the increase in its dimensions.
   在物理学中，当固体的体积随着其尺寸的增加而增加时，会发生立方收敛。
3. 3. The algorithm converges quickly to a stable solution, indicating that the problem is well-posed.
   该算法快速收敛到一个稳定的解，表明问题已得到良好定义。