The article will fill in the space of this aspect about the problem that how to research the foundation of The Lu-Long Pass and some connected problems about the Mongolians in the 15th～17th.
本文试图通过对郭造卿生平的研究及《卢龙塞略》的分析，以填补长期以来对这一领域研究的一些空白。
This paper is used to describe and compare the phonetics, vocabulary and grammer of the Mongolian language that was in"LuLongSaiLue" .
本文主要引用描写法和比较法,对《卢龙塞略》《译部》中的蒙古语进行语音、语法、词汇等研究。