The " reverse colours " check box allows you to display the entire image as a " negative " image - ie dark stars on a light background , rather than the normal bright stars on a dark background "反转颜色"允许你把整个画面按照“相反”的方式显示-比如把暗星体亮背景的图像转换为亮星体暗背景的图像。
Since bones show up clearly as white objects against a darker background , roentgen ' s rays proved particularly suited for examining fractures and breaks , but they could also spot cancer tumors , respiratory diseases such as tuberculosis or black lung , and a variety of other tissue abnormalities 由于当白色的物体对着深色的背景时骨骼显现得很清楚，伦琴射线被证明尤其适合于检查骨折和骨裂，但是它们也可以发现癌症、肿瘤、肺结核或黑肺等呼吸道疾病以及一系列其他组织异常。
She philosophically noted dates as they came past in the revolution of the year ; the disastrous night of her undoing at trantridge with its dark background of the chase ; also the dates of the baby s birth and death ; also her own birthday ; and every other day individualized by incidents in which she had taken some share 她用一个哲学家的思想去回忆一年中从头到尾的日子她回想起在特兰里奇的猎苑的黑暗背景中，毁了她的那个不幸的夜晚回想起她的孩子出生和死去的日子也回想起自己降生为人的那一天还回想起那些因为与她有关的事件而变得特别的日子。
