铺砂是将处理好的缸砂或紫砂泥矿砂撒置在紫砂泥片的表面，再敲打平整，使砂粒嵌入泥片的表层之内，经烧成后，掺入的砂粒与泥片会形成不同的颜色和肌理效果，增加了紫砂陶的装饰美感；胎土加砂的具体做法虽有调砂、铺砂两种，但都是以为了使紫砂壶胎的肌理列加丰富。“珠粒隐现，光闪夺目”。
铺砂浓度越大，嵌入对导流能力的伤害程度越小；
The larger the sanding concentration is, the smaller the damage degree of proppant embedment to conductivity is.
铺砂机和除雪车都超时工作，确保道路畅通，但是对于英国的许多人来说，今年的圣诞季节提早到来。
Gritters and snow ploughs are working overtime to keep the roads clear but for many people around the country the Christmas holidays have come early this year.
河砂滑动层在砌筑时，要随砌随铺，禁止大面积预先铺放。
River sand shall be paved with the progress of bricklaying and extensive paving in advance is forbidden.
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