infrared background-limiting imaging seeker 背景限红外成像寻的器
The distance the wall could be seen depends on the angular resolution of the imaging system (the eye) and the contrast of the wall vs. background.
能看清长城的最远距离取决于成像系统(眼睛)的角度分辨率以及长城与它周围环境的对比度。
The images are often then polished up in Photoshop, or some digital imaging package, but only the background and shadows are manipulated, the actual fluid shape is left untouched.
这些照片通常要通过Photoshop或其他的数码图像处理工具加以改善,但是这种修饰仅限于背景和阴影,流动的形态是不做任何加工的。
Background: There is no consensus on the optimum imaging method to use to confirm the diagnosis of true scaphoid fractures among patients with suspected scaphoid fractures.
背景:在用以证实可疑舟状骨骨折患者准确诊断的最佳影像学方法上未达成一致意见。
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