chippings spreader是什么意思

用法例句

Research and application of using stone chips instead of sand in concrete;

石屑代砂在混凝土中的研究与应用

Because natural sand has a poor stickiness and is a limited resource,and stone chips of poor quality affect the performance of asphalt mixture,using machine-made sand in large quantities becomes inevitable.

细集料是沥青路面不可缺少的材料组成部分,由于天然砂的粘附性较差又是一种有限资源,品质较差的石屑影响沥青混合料的性能,致使机制砂的大量应用成为必然趋势。