However, if these pictures are not only flashed very briefly but are also hard to make out to begin with and have a grainy pattern displayed right after them, they often cannot be seen.

然而，如果这些影像刚开始的时候很难辨认出来，即使简短的呈现影像之后再呈现纹理图案，他们通常也是无法辨别的。

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For example, an inexpensive point-and-shoot camera does a reasonable job of taking pictures but cannot begin to compare with the imaging quality of a professional SLR.

ENGADGET: HiFiMAN launches HM-901 'high resolution' audio player, we go ears and hands on