I'm not saying that the iPad's screen is bad, but after owning the iPhone 4 with the Retina Display, you really do notice the difference in pixel density.
我并不是说iPad的屏幕不好，但拥有了配有RetinaDisplay的iPhone4，你就真的会注意到两者像素密度上的不同。
This is to maintain pixel-for-pixel compatibility - the plug-in display has the same pixel dimensions as the iPhone display, but the iPhone has a much greater pixel density.
这是为了维护像素到像素(pixel- for - pixel)兼容性—插件显示界面与iPhone显示界面的像素尺寸相同，但是iPhone拥有的像素密度更大。
Retina displays have a pixel density that's so high, your eyes can't discern individual pixels at a normal viewing distance.
软件翻译：“视网膜显示器具有如此高的像素密度，您的眼睛不能在正常观看距离辨别各个像素。”
Results Before using SonoVue, there was no difference in color pixel density between malignant group and benign group and no correlation between the color pixel density and MVD of malignant group.
结果增强前彩色像素密度恶性组与良性组间无显著性差异，且彩色像素密度与MVD无相关性。
The microvessel density and vascular endothelial growth factor was measured in surgical specimen after immunohistochemical staining using anti-factor CD34, VEGF and compared to color pixel density.
对手术标本进行抗CD34因子及抗VEGF因子免疫组化染色，测量肿块微血管密度计数及血管内皮生长因子（VEGF）阳性表达率，与超声彩色像素密度值相比较。
Then, every frame is mapped from spatial domain to statistical domain incorporating the factors such as the difference image from the consecutive frames and the prior distribution of a pixel density.
然后，结合图像帧间的差分信息以及灰度分布的先验概率等因素将图像从空间域映射至统计域。
Then, every frame is mapped from spatial domain to statistical domain incorporating the factors such as the difference image from the consecutive frames and the prior distribution of a pixel density.
然后，结合图像帧间的差分信息以及灰度分布的先验概率等因素将图像从空间域映射至统计域。
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