fine aggregate

例句：

1. 1. The construction project requires a large amount of fine aggregate for the foundation.
   这个建设项目需要大量的细骨料来建地基。
2. 2.The engineer decided to use a mixture of fine and coarse aggregate to improve the strength of the concrete.
   工程师决定使用细骨料和粗骨料的混合物来增强混凝土的强度。
3. 3.Fine aggregate is typically used in road construction to improve drainage and prevent waterlogging.
   细骨料通常用于道路建设中，以改善排水并防止积水。