Leaching of gold is a nwe method for non - cyanidation leaching gold.碘化浸金是一种新的 非 氰化浸金方法.It is found that the dispersing, impurity removal and chelating effect of acid help gold cyanidation.研究结果表明,柠檬酸的分散 、 除杂及螯合作用有助于金的氰化浸...
For several days traffic fromthe Naples airfields was partially interrupted.那不勒斯机场的对外交通部分地停顿了数天.Most of the airfields were attacked without any defence.大多数机场在毫无抵抗的情况下被攻击.Safety meting use forexpress ways , railways airfi...