本文只讨论用于版权保护的，利用扩频技术在时域嵌入二进制图像数据的音频水印技术。
This paper focuses on the audio watermarking for copyright protection which embeds the binary image data into the time domain of the audio signal based on the spread-spectrum technique.
Photo包含了诸如title和caption等字段，以及一些用于存储二进制图像数据的字段。
Photo contains fields like title and caption, as well as a few others for storing binary-image data.
即使当为集合视图提取的对象在内存中时，图像对象（连同其二进制图像数据）也可以保持故障，从而不在内存中。
The image object (along with its binary image data) can then be kept a fault, and thus not in memory, even when the object you fetch for the collection view is in memory.
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