包括在IE9无窗口模式下的GPU加速的3d图形api。

GPU-accelerated 3d graphics API including in windows-less mode via ie9.

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在托管模式下运行时，将出现两个窗口。

When you run in hosted mode, two Windows come up.

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要想进一步掌握Screen，可以研究一下多屏幕模式，学习如何用老式的锁防止对各个窗口的访问。

To delve further into screen, read about split-screen mode and learn how you can prevent access to individual Windows with an old-fashioned lock.

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