hardness s of concrete 混凝土硬性
The hardness of ice is similar to that of concrete.
冰的硬度和混凝土差不多。
Adamson points out that the hardness of an overlay and concrete are not the same, therefore the harder the surface, the cleaner the cut.
亚当森指出，一个覆盖和具体的硬度不一样，因此很难从表面上看，清洁的削减。
Aggregate hardness and size, amount of steel reinforcing (rebar) and whether the concrete is green or cured affects blade selection.
总结硬度和规模，强化钢量(钢筋)混凝土是否是绿色或治愈影响叶片的选择。
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