The fourth part discusses the handicraft of Hedong Dao,it pay more attention to Hedong Salt pond . While it still discusses the mining industry,the ceramics and the textile industry.
四 河东道的手工业,重点介绍了河东盐池,还对河东道的矿冶业、陶瓷手工业、纺织业等方面进行了概括介绍。
参考来源 - 唐代河东道经济发展概论·2,447,543篇论文数据，部分数据来源于NoteExpress
The dispute is about wages, working conditions, and the management of the mining industry.
这场争端涉及工资、工作环境和采矿业的管理。
What made the mining industry safer in the late 1960s?
是什么让19世纪60年代末的采矿业安全性更高？
All this is good news for the mining industry.
对于矿业公司来说，这是一个好消息。
The National Mining Association refused to single out Massey during the hearing, saying only that the mining industry wants to improve its safety record across the board.
VOA: standard.2010.04.27
International mining companies and industry analysts warn,however, that gold production will not meet demand in the next few years.
VOA: standard.2010.07.21
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