单词 | Portland cement |
释义 | Portland cement Portland cement 或 port.land cement AHD: [pôrt“l…nd, p½rt“-] D.J. [6p%8tl*nd, 6p*&rt-]K.K. [6p%rtl*nd, 6port-]n.(名词)A hydraulic cement made by heating a mixture of limestone and clay in a kiln and pulverizing the resulting material.普通水泥:一种硬性水泥,其制法是将石灰石和粘土混合后放在窑里烧制,再将烧制出的材料粉碎而成语源:After Portland , an urban district of southern England 源自 波特兰 市,英格兰南部一市区 |
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