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The average cost for the center with, up to a harden board price, down to a drop stop price, the price interval, the greater the share if chips, said the more concentrated chips. Below the formula, when the chips concentration is equal or greater than 90%, chip is highly concentrated. Value is larger, the more concentrated, said chips with people's habits. And prudent letter system comes with chip concentration (SCR) index, value the smaller, says the more concentrated, and people chips habit of opposite.
Generally speaking, stock after |
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