但是，这是一种不太可能而且通常不切实际的方法，因为经常需要保留传统的Ajax功能。
However, this is an unlikely and often unreasonable approach, because there are many reasons to preserve traditional Ajax functionality.
J2EE安全模型以方法权限为基础，因此对于细粒度的安全访问来说，它既不切实际又很麻烦。
The J2EE security model is based on method permission, so it is impractical and cumbersome for fine grained security access.
使用算法方法显然是不切实际的，这主要是因为项目主要参数无法计算。
It is largely impractical to use algorithmic methods for business case estimation, as the majority of project factors cannot be accounted for.
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