Not only had the market been flooded, but also the soft 'yellow ground' had been mostly exhausted, giving way to harder 'blue ground' which had to be broken with machinery or dynamite.
不仅市场被淹没，而且柔软的“黄地” 已经大部分被耗尽，取而代之的是坚硬的“蓝地” ，必须用机械或炸药来破坏。
| 单词 | Blue ground |
| 释义 |
Blue ground
原声例句
人物档案 Not only had the market been flooded, but also the soft 'yellow ground' had been mostly exhausted, giving way to harder 'blue ground' which had to be broken with machinery or dynamite. 不仅市场被淹没，而且柔软的“黄地” 已经大部分被耗尽，取而代之的是坚硬的“蓝地” ，必须用机械或炸药来破坏。
英语百科
Blue groundIn reconnaissance for diamond mining, blue ground refers to a layer of non-oxidized kimberlite. Kimberlites are a class of igneous rocks commonly associated with diamond mining. Before the advent of modern geophysical probes, the ideal way to find a kimberlite pipe was to search for "yellow ground", a layer of oxidized kimberlite which is a deep tawny yellow. "Blue ground" was regarded with scorn during the South African diamond rushes, and one of the central characters in the initial diamond rush, Barney Barnato, made his fortune by purchasing digs in which the "blue ground" was all that remained. |
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