Not known Facts About concrete
把…堆積(或堆疊)起來 We piled lots of logs up next to the fireplace. 我們在爐火旁堆了很多木柴。” It does not matter which merchandise you end up picking, Owens recommends using as little water as feasible. “The lessen the drinking water-to-cement mixing ratio, the more robust the concrete and the better the shrinkage r