哥德尔不完全性定理越来越受到人们的垂青和重视，但有些却是错解，需要予以澄清。
G? Del's incompleteness theorem is getting more and more attention, but some solutions are wrong, need to be cleared off.
本文以两个自变量的拟线性双曲型方程的古尔沙问题为例，应用反函数和积分不等式证明了等价积分方程组解的存在唯一性，同时给出了解的存在区域和已知参量的依赖关系。
In this paper, we show the domain of the existence of the solution on Goursat problem for quasi—linear hyperbolic equation and obtain the Theorem of the existence and uniqueness in above domain.
本文以贝塞尔函数级数和的形式，给出了动态特性的理论解析解。
This paper gives a theoretical and analytical solution of the dynamic response for long gas pipeline in the form of infinite series with Bessel functions.
本文以贝塞尔函数级数和的形式，给出了动态特性的理论解析解。
This paper gives a theoretical and analytical solution of the dynamic response for long gas pipeline in the form of infinite series with Bessel functions.
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