refractive index of cement 光学胶折射率
In road construction, the flexural tensile strength is a key index of cement concrete.
弯拉强度是水泥混凝土路面质量检验的一个重要指标。
The different type and content of aid and clinker were grinded in testing mill to test the fluidity index of cement.
用化验室统一试验小磨将不同种类、不同掺入量的助磨剂与熟料共同粉磨，检验水泥的流动性指数。
The specific surface area is an important index in measuring the strength of cement.
水泥比表面积是衡量水泥强度的一个重要指标。
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