Two and a half years ago, we even managed to capture the first direct pictures of alien worlds.
两年半前，我们甚至设法捕捉到了外星世界的第一直接画面。
But direct searching of pictures or videos (as opposed to the words that people attach to describe them) is much harder than indexing and searching text.
但是对图片和视频的直接搜索(人们描述它们时所使用的词语)比对文本形式的搜索困难得多。
As the bottom layer of the ODFDOM hierarchical structure, it provides direct access to the physical storage in the ODF package, such as XML streams, pictures, and embedded objects.
它是ODFDOM层次化结构中最低的一层，它提供对odfdom包中的物理存储的直接访问，比如xml流、图像和嵌入的对象。
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