Portland cement

名词 n.
中文释义

英文释义

名词 n.
  1. A finely-ground powder made by heating and pulverizing limestone and clay. countable,uncountable
    — Ordinary Portland Cement (OPC) is the world's most common form of cement. The blue plaque dedicated to inventor Joseph Aspdin describes OPC as "one of mankind's most important manufactured materials".

词形变化

Portland cements plural portland cement alternative

词源

From its resemblance to limestone from Portland in Dorset.
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