In some simple conditions, all possible exact explicit travelling wave solutions are given.

在一些简单条件下，给出了所有可能的精确的解析行波解。

However, the theory and technology of existing protection based on travelling wave is imperfect.

然而现有行波保护的保护原理还不成熟，技术还不完善。

The main aim of this paper is to deal with location measurement of modal zero travelling wave front.

主要讨论了解决零模行波波头定位的问题。

The rationality of the travelling wave solution and the expansion by Taylor's series has been confirmed.

还论证了取行波解和作泰勒展开的合理性。