替换程序 meaning in English

procedure for substitution
thunk

The term thunk was coined by him for this routine and the term has stuck .
他把这种程序命名为形实替换程序，现在这个术语已被大家所接受。
The term thunk was coined for this routine and the term has stuck .
“形实替换程序”是为该项操作新造的术语，现在这个术语已被大家所接受。
For each reference to a formal parameter in the body of the procedure, a call of this thunk appears .
程序体中每当引用形式参数时，就调用形实替换程序。
Now let s turn our attention from generic textual - substitution programs to highly specialized code generators
现在让我们把注意力从通用的文本替换程序转移到专用的代码生成器上来。