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Lightweight concrete is a development mainly of the last twenty years.
轻质混凝土主要是最近二十年来发展起来的.
辞典例句
I mainly building materials products are multi - functional lightweight concrete MLC.
我公司主要建材产品有MLC多功能轻质混凝土.
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These steel trusses act compositely with metal deck slabs and lightweight concrete fill.
这些个钢架和金属楼板及轻型填充混凝土配互助用.
Information is provided for both normal - weight and lightweight concrete and for slabs, beams, columns and walls.
法规还对普遍重量的混凝土,轻质混凝土,楼板, 梁, 柱和墙做了一些规定.
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