它因有铅矿而非常出名.It is well known for its lead mines.矿产资源主要以钨矿 、 铅矿 、 锌矿和瓷土矿为主.Mineral resources are mainly tungsten ore, lead ore, zinc, and clay mineral - based.本文研究了硫化钠对方铅矿无捕收剂浮选的影响.Effects of sodium sulfide on collectorles...
Creative people are usually very determined and thrive on overcoming obstacles.富有创造力的人一般都意志非常坚定，能不断克服困难，事业蒸蒸日上。Only by overcoming our weaknesses can we advance without any encumbrance; only by uniting ourselves in our st...
David Fincher paints from a palette consisting almost exclusively of grey and mud brown.戴维·芬彻几乎只用灰色和土褐色作画。Mr Fincher is not arguing that disease - protection is religion's main function.芬奇教授的观点并不是说宗教的主要职责是疾病防御....
1938年，凯恩以点数击败杰基·杜里克，获得了世界拳王称号。Kane won the world title in 1938 when he outpointed Jackie Durich.她把手中的钱展成扇形开始点数.She fanned the money in her hand and began to count.计数单元的新位置就用来形成新补充的极点数.The new counting cell positions are ...