这个矿井与1960年开始出产铜矿。 铜矿的开采知识这里出现了一个深1.2米，宽4米，面积为7.7平方千米的深坑。
The mine has been in production since 1906, and has resulted in a pit over 1.2 km deep, 4 km wide, and covering 7.7 square kilometers.
论述了矿山开采专家系统的结构、系统开发与设计、知识获取等问题。
This paper discussed the structure, development, design, knowledge getting etc. of the expert system of mining.
人们迫切的需要新一代技术和方法来帮助来开采信息中的宝藏，并加以提炼，使之成为有用的知识。
People pressing needs of a new generation of technologies and methods to help to exploit the riches of information and to be refined, so that they can become useful knowledge.
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