open-cast
美 
英 
- un.露天开采;敞开铸造
 - 网络露天开采的
 
adj.  | 1. describes a method of mining in which minerals or other materials are excavated from the surface rather than deep underground  | 
| 单词 | open-cast | ||
| 释义 | open-cast美  英  
 
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