採砂
採砂是指從露天礦坑[1]、沙坑、海灘、內陸沙丘、海床和河床中開採沙子[2]。沙子經常被用於製造業，例如用作磨料或混凝土。它還通常與鹽混合灑在結冰和積雪的路面上，以降低路面的熔點溫度[3]。
參考文獻
- ^ Sandpit Owners Ordered to Take Corrective Steps. Los Angeles Times. 15 July 1969: OC–A1 [2021-03-01]. （原始內容 (Subscription required)存檔於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]. （原始內容 (Subscription required)存檔於2013-10-21）.
- ^ The messy business of sand mining explained. [21 February 2021]. （原始內容存檔於2021-03-05）.
- ^ Battle lines in the sand. The Sydney Morning Herald. 2 November 2005 [2021-03-01]. （原始內容存檔於2017-09-10）.