混凝土的强度等级是指混凝土的抗压强度。按《混凝土强度检验评定标准》（GB/T 50107—2010）的标准，混凝土的强度等级应按照其立方体抗压强度标准值确定。采用符号C与立方体抗压强度标准值（以N/mm^2; 或 MPa计）表示。
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在检测的混凝土强度等级较低时，应考虑到这种差异。
It should be considered in examining the concrete of low strength grades.
分析了碎石的质量特性及其与混凝土强度等级、性能之间的制约关系。
We analyse the restricted relations between speciality of crushed stones and the degree of intensity as well as quality of concrete in this essay.
万鑫大厦具有占地面积大，地下室层数多，混凝土强度等级高，结构复杂等特征。
Wanxin mansion has the characteristics of large area, many layer Numbers of basement, high grades of concrete strength and complex structure.
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