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1·One might therefore think that opening another slit would just increase the number of electrons hitting each point of the screen, but, because of interference, it actually decreases it in some places.

人们因此可能会想到，另开一条缝只不过是打到屏幕上每一点的电子数目增加而已。但是，实际上由于干涉，在某些地方反而减少了。