nearly integrable system

例句：

1. 1. The mathematical model of this system is near to being integrable.
   这个系统的数学模型几乎可积。
2. 2. The researchers found a nearly integrable solution to the problem.
   研究人员找到了一个几乎可积的解决这个问题的方法。
3. 3.The theory of relativity is a nearly integrable system that describes the behavior of space-time.
   相对论理论是一个描述时空行为的几乎可积系统。