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- At last subtracts background according to both color distortion and brightness range.At the same time，does some morphological work to improve the result. 然后根据颜色差异和亮度范围综合条件，结合形态学处理进行背景减除。
- A program of measuring and data processing can handle the case of pulsed beam.In order to obtain correct emittance results, subtracting background and setting threshold value are important. 处理后的数据利用程序可获得均方根和边界发射度、束斑大小、最大正负散角以及发射度相图。
- If you subtract 2 from 8, you get 6. 8减去2是6。
- Subtract 3 from 7 and you have 4. 七减三得四。
- He has a strong political background. 他有强大的政治背景。
- That incessant background music gets on my nerves. 那没完没了的背景音乐令我非常烦恼！
- He has a working-class background. 他是工人阶级出身。
- Get the fall in the background, will you? 把瀑布拍进背景中去好吗？
- A background accompaniment, as for a performer. 伴奏为一个演奏者配音伴奏
- The little girl has begun to learn to add and subtract. 这小女孩已在学做加减法了。
- She came from a privileged background. 她出身於特权阶层。
- He came from an impoverished background. 他出身贫寒。
- This book gives the background of the Civil War. 这本书叙述了南北战争的背景。
- If you subtract 3 from 5, you get 2. 五减去三就得二。
- Other motives may have lurked in the background. 这后面可能隐藏着其它动机。
- He was lurking slyly in the background. 他狡猾地躲在背後活动。
- If you subtract two from five you get three. 五减去二剩下三。
- The children are learning to add and subtract. 孩子们学做加减法。
- Her own particular chip on the shoulder was her poor background. 她感到怨恨的特有原因是她的背景不好。
- At this age, you should be able to subtract one fraction from another. 在你这个年龄，你应该会演算分数减法了。
