In an RT environment, however, the JIT compiler introduces an unpredictable run-time behaviour that wreaks havoc on worst-case execution time analysis.

然而，在RT环境中，JIT编译器引入了不可预知的运行时行为，这将严重影响最坏情况时执行时间分析。

youdao

And the Windows run time (what the RT stands for) sounds closer to Windows 8 than iOS is to Mac OS X.

FORBES: Move up http://i.forbesimg.com t Move down

That said, you won't be spending much time down here on the desktop, since Windows RT can't run legacy programs written for traditional, x86-based Windows systems.

ENGADGET: Microsoft Surface with Windows RT review