But it comes at the expense of accuracy - the Mercator projection makes countries close to the pole look much bigger than they really are.
但它是以精确度为代价的，因为墨卡托投影使那些靠近极点的国家看上去比真实尺寸要大的多。
For instance, it is universally agreed that the striate area of the occipital pole is the area of primary visual projection.
例如，一般都同意枕叶的条纹区域掌管主要的视觉投射。
According to this spatial distribution, the probability density of each pole is calculated, thus forming a density map with principle and method of the spherical projection.
按照这样的分布规律统计空间上各极点的概率密度，并用球面投影原理和方法形成密度图。
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