special mining meaning in Chinese

特殊采矿

preparation of special mining drawing for alternation of coal mining faces base on mapinfo
的工作面开采接替专题矿图的制作
it will change the dependent situation of importing special mining cables and provide all sorts of high quality mining cables for shanxi s base of energy heavy industry and chemical industry
引进国外矿缆方面的新技术新工艺新设备新材料，特别是阻燃矿用电缆，采煤机机组电缆等。
the largest diameter of which can reach 350 mm, the products are widely used in many fields, such as spacecraft machinery, metallurgy, printing and dyeing, foodstuff, pharmaceutical, auto industry and so on . ningbo donglian is able to design, measure and produce all kinds of out-of-standard and special mining mechanical seals
生产的密封环最大直径可达350mm.产品广泛使用于石油、化工、航空、机械冶金、印染、食品、制药、汽车等领域,并可承接非标和特殊工矿密封的设计、测绘、制造服务。