Because white dwarfs can come in a range of masses, the merger of two could result in explosions that vary somewhat in brightness.

由于白矮星的质量处在有个亿范围之内，两个星体的并合会导致亮度有些许变化的爆发。

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It is normal for white gold jewellery to lose brightness over time, but white gold wedding rings can be maintained with rhodium plating every few years or so.

白金珠宝随着时间的流逝失去光泽是很正常的事情，但是你可以通过每隔几年将其重新镀铑来使其保持光泽。

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So it was the brightness of silver that then came to mean pure white.

因此，这个词“纯白”的含义是从银色光泽的意思演变而来的。 注意是强调句。

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For a truly impressive image, projectors need to offer both high color brightness and high white brightness.

ENGADGET: Epson adds the Home Cinema 750HD to its line of home theater projectors, ships in March for $899

The Home Cinema 750HD delivers incredible color and amazing detail, allowing families to enjoy their favorite movies, sports and video games virtually anywhere in high-quality 2D and immersive 3D with up to 3, 000 lumensi of color brightness, 3, 000 lumens of white brightness and exclusive Bright 3D Drive Technology.

ENGADGET: Epson adds the Home Cinema 750HD to its line of home theater projectors, ships in March for $899

In short: you no longer have a pull-out settings menu, but the basic settings -- brightness, geotagging, white balance, flash, and digital zoom -- are along the right-hand side of the viewfinder.

ENGADGET: Dell Streak Android 2.2 (Froyo) update review Mobile