| 单词 | quartz sand |
| 释义 | quartz sand Experts analysed samples collected by the submarines and found they were composed of granite and quartz sand - which only form on dry land. The Sun At the top, we spent two days exploring our alien surroundings, bathing in crystalclear streams fringed by pink quartz sand. Times,Sunday Times He said that panel production required large amounts of energy because it involved melting and purifying quartz sand at extremely high temperatures. Times, Sunday Times The sandstone consists or more than 95 percent quartz sand. Retrieved from Wikipedia CC BY-SA 3.0 Besides oil and coal, salt, limestone, quartz sand, and bentonite are also found here. Retrieved from Wikipedia CC BY-SA 3.0 |
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