单词	portland-pozzolan cement
释义	portland-pozzolan cement noun : a portland cement to which pozzolana is added during the grinding of the cement clinker Word History Etymology portland cement + pozzolana
随便看	balance of mind balance of nature balance of payments balance of power balance of terror balance of trade balance out balance piston balance reef balance rudder balance screw balance sheet balance spring balance staff balance the budget balance wheel balanced balanced anesthesia balanced fund balanced lethal balanced on a razor's edge balanced out balanced population balanced rock balanced rudder

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