在视图窗口中，通过单击View的灰框部分来确保选择空视图。

In the view window, be sure to select the empty view by clicking inside the gray part of the view.

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灰框代表JMS 1.02的“统一域”中未被XMS实现的具体类。

The grey boxes represent the domain specific classes in JMS 1.02 that are not implemented by XMS.

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我们向右边看去，便会看见在窗子对面，有一扇上端嵌了一个玻璃框的灰漆玻璃门。

One then perceived on the right, facing the window, a glass door surmounted by a frame glazed and painted gray.

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