楊家杖子鑛务局寺前大北嶺兩鑛,試驗新式採鑛方法獲得成功。 楊家杖子鉬鑛在偽滿時代,採鑛效率平均僅在10噸左右,當時的採鑛方法是上向阶段法。在我們修復该鑛后,同樣採用了上向階段法,效率也在10吨左右。但由於风压机未能全部修復,採鑛数量少,与选鑛場的处理能力形 Yangjiazhangzi Mining Bureau Temple in front of two large Beiling, trial of new mining methods to be successful. Yangjiuzhangzi molybdenum in the Manchu era, mining efficiency average only about 10 tons, when the mining method is to stage method. After we rehabilitated the mine, we also adopted an upward phase approach with an efficiency of about 10 tons. However, due to the failure of the wind press to fully repair, the quantity of mining is low and the handling capacity of the ore dressing plant is shaped