Google affiliate net work.

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Hi friends. i know there are many ways to earn with google. but i want to know about the terms of 7-EPC and 3month EPC. is it mean when a person click any advertisement during 7 days i will get pay for these clicks. example: if person click any of my banners 5 times i will have payment for these clicks or what? and if there any terms useful to under stand please describe them for us. thanks