open pit

基本解釋

One can hardly discern the bottom of the open pit.
難分辨的是開放凹坑的底部。
Marvellous still lake in an open pit, color of the water is amazing.
在一個(gè)露天的采石場(chǎng)里有一片神奇的湖水，無(wú)比平靜。水的顏色令人驚艷不已。
The open pit areas are surrounded by an array of sculpted tailings ponds and mine dump areas; these receive mine waste rock for storage and later leaching for further recovery of metals.
露天礦坑周圍是一些開挖尾料的堆棄池和廢礦垃圾場(chǎng)。儲(chǔ)存在這些地方的廢棄礦石，稍后經(jīng)過(guò)過(guò)濾可以深入提取其中的金屬。

Encina said Codelco is working to convert one of its biggest mines, Chuquicamata, from open pit to underground.
FORBES: Continuous Mining To Help Chile Extend Mine Life, Save Money
Besides its open pit mine located in Northern Quebec, there is a growing lithium battery industry growing in Montreal.
FORBES: Canada Lithium on Target For 2013 Production; To Be First Canadian Lithium Producer
Along with strong financial backing, the Quebec Lithium open pit mine is on schedule in terms of commissioning and construction.
FORBES: Canada Lithium on Target For 2013 Production; To Be First Canadian Lithium Producer

An open pit is a mine where the coal, metal, or minerals are near the surface and underground passages are not needed.