我们真正想做的是从图像注册表获取图像描述符。
What we would really like to do is get the image descriptor from the image registry.
眼尖的读者或许已经注意到我们直接将一个图像描述符添加到操作中。
The eagle-eyed reader may have spotted that we supplied an image descriptor directly to the action.
方法简单地创建了一个图像注册表并添加了两个图像描述符。
Method lazily creates the image registry and adds two image descriptors.
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