Furthermore, the mix ratio of concrete and the size of coarse aggregation have also effect on the results of test, but it seems that the effect of the fine coarse aggregation is not evident.
此外,混凝土的配合比与粗集料对测试结果也有重要影响,而细集料的影响似乎并不明显。
Design fine-grained class hierarchy and coarse-grained database tables.
设计细粒度的类层次和粗粒度的数据表。
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