研究了盐酸直接浸取钛铁矿的浸取动力学.The reaction kinetics leading ilmenite directly by acid was investigated.含铁氧化物的矿物有磁铁矿、赤铁矿、褐铁矿、钛铁矿等.I. oxid, include magnetic iron orered iron ore , brown iron ore, etc.主要伴生矿物为磁铁矿、钛铁矿, 少量黄铁矿和微量黄铜矿.Assoc...
Sam's mother said her son had a good upbringing and schooling.萨姆的母亲说她儿子家教好，受过良好教育。Sam stood his ground and got a blow that stunned him.萨姆站在原地，被一下打昏了。Eventually Sam persuaded her to accept an offer of marriage.最终萨姆说服...
She avoided the issue by ordering a turkey sandwich.她点了份火鸡三明治，以此来避开这个重要问题。A surprising number of customers order the same sandwich every day.每天点同一种三明治的顾客多得惊人。Right, who's for a toasted sandwich then?好吧，谁想要吐司三明治？...