The concrete being made up of bone and sand slurry is a kind of the nonlinear material.
混凝土是一种由骨料和砂浆构成的非线性材料。
Khaki shorts aren't 'bone' or 'sand,' they're 'Khakmeisters.
卡其短裤并不是“骨色”或“沙色”，而是“Khakmeisters”。
The mix design of strong concrete should follow the principles of low water-cement ratio, low sand ratio and high bone-glue ratio, thus the relatively satisfying effect can be achieved.
高强度混凝土的配合比设计应该遵循低水灰比、低砂率、高骨胶比的原则，这样才能达到比较理想的效果。
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