Strength grade of cement 水泥强度等级 ; 水泥标号
grade of cement mortar 水泥砂浆标号
structural grade of cement 结构用水泥
grade e of cement 水泥等级
In the kiln production, the grade of cement is lower and quality is unsteady.
在立窑水泥生产中，水泥标号低，质量不稳定。
It is suggested to rein - force local bearing wall's strength by raising up the grade of cement sand grout.
建议提高砂浆强度等级在砖砌体局部加强强度。
The additive may be used in raising grade of cement without altering available cement producing process and increasing cement producing cost.
使用该添加剂可以在不改变现有的生产工艺，不降低水泥的性能，不增加水泥成本的条件下提高水泥标号。
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