According to the request of double driving roadways of Sihe Mine Jincheng Anthracite Mining co. Limited, the paper researched and developed continuous transport system.

根据晋城煤业集团寺河矿的双巷掘进要求，对连续运煤机进行了配套研制。

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Wayne Thomas said the rise in the price of coal and the quality of the anthracite in the local area had seen mining become more profitable in recent years and led to a "resurgence of interest".

BBC: Gleision Colliery near Cilybebyll: Brief history