The spider also USES its third pair of legs in the mating display, raising them to show a brush of black hairs and white tips.

这蜘蛛还会在求偶大会中使用第三对后肢，像秀黑发梳、白色梳齿一样升高。

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The "Hidden" card features a keypad and black-and-white display for six of the digits in the card's unique number.

另外一种“隐形卡”的特色是有一个小键盘，以及显示卡号缺损数字的六位黑白显示器。

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The color display can change to a black-and-white image so users are able to see it even in bright sunlight.

电脑显示器可以切换成黑白图像显示方式，使得用户即使在白天也能够看清屏幕。

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Last May, Plastic Logic demonstrated a paper-like flexible screen capable of playing video in colour, which is achieved by placing a filter on top of the original black-and-white display.

BBC: Bend me, shape me: Flexible phones 'out by 2013'

The DX, by contrast, has black-and-white electronic ink display built for easy readability.

FORBES: Can Smaller Price Help Big-Screen Kindle DX Fight Apple's iPad?

Better yet, the always-on, ultra low-power, black and white display becomes a canvas for notifications, sports scores, maps, lists and notes, all just a glance away.

ENGADGET: Popslate launches iPhone 5 case with four-inch E Ink screen (video)