在她们之间有许多不同点。
结合许多不同点的光子方向信息，人们可以构建它的整个路径。
By combining information about the photon's direction at many different points, one could construct its entire flow pattern ie.
虽然这次的次级贷危机与日本1989年资产泡沫的破裂有许多不同点，但它们也有显著的相似之处。
Though differences between the subprime crisis and the bursting of Japan's own property bubble after 1989 are inevitably great, the similarities are striking.
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