采砂

采砂是指从露天矿坑^[1]、沙坑、海滩、内陆沙丘、海床和河床中开采沙子^[2]。沙子经常被用于制造业，例如用作磨料或混凝土。它还通常与盐混合洒在结冰和积雪的路面上，以降低路面的熔点温度^[3]。

参考文献

1. Sandpit Owners Ordered to Take Corrective Steps. Los Angeles Times. 15 July 1969: OC–A1 [2021-03-01]. （原始内容 (Subscription required)存档于2009-08-07）.; Lubasch, Arnold H. $75-Million Industry Park Planned for L.I. Sandpit. The New York Times. 8 October 1967: R1 [2021-03-01]. （原始内容 (Subscription required)存档于2013-10-21）.
2. The messy business of sand mining explained. [21 February 2021]. （原始内容存档于2021-03-05）.
3. Battle lines in the sand. The Sydney Morning Herald. 2 November 2005 [2021-03-01]. （原始内容存档于2017-09-10）.