interface location meaning in English

界面位置
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In this paper , we developed a new kind of interface capturing method which use the level set equation to keep track of the interface location as the zero level and use the ghost fluid method to propagate the contact interface disturbed by r - m instability or r - t instability
由于该类方法是以数学方程的物理解的性质为基础，通过设置一个距离函数( levelset函数)来标志界面所在的位置，从而能够够精确地捕捉到界面的发展，而不会出现非物理解的现象。