用其他语言编写自己的扩展函数通常费时费力。
To write your own extension function in another language is often complex and time consuming.
最后，修改扩展函数来填充一列而不是整个属性页。
Finally, alter your extension utility to populate a column instead of a property page.
扩展函数调用rdf模型上的complete方法。
The extension function calls the complete method on the RDF model.
因此在编写一个全新的扩展函数时，实例方法并非首选。
Thus they're rarely the first choice when writing a new extension function.
其点扩展函数分为一次射线点扩展函数和散射点扩展函数两部分。
The point spread function consists of prime point spread function and scatter point spread function.
对于文件没有扩展名的情况，此函数将返回空字符串。
In case a file does not have an extension, the function returns an empty string.
函数模板就像是用户定义函数的一个扩展。
A function template is like an extension to a user-defined function.
使用上面的这个函数来取得文件的扩展名。
同时该函数的用法进行了扩展和压缩。
The utility of this function has also expanded and contracted at the same time.
这些函数分别用来设置、获取、列出和删除扩展属性。
These set, get, list, and remove extended attributes, respectively.
请不要忘掉此函数名后的.xml扩展名：这非常重要。
Don't miss the.xml extension that follows the function name: This is important.
请不要忘掉此函数名后的.xml扩展名：这非常重要。
Don't miss the.xml extension that follows the function name: This is important.
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