Using vacuum adsorb style fix up paper.固定纸张方式采用真空吸附方式.The cobalt oxide is produced from cobalt catalyst waste by using acidolysis precipitate method.用含钴催化剂废料作原料,采用酸溶-沉淀法工艺制取氧化钴.The Afghan air force was using helicopters ...
Numerous applications of two phase catalysis to hydroformylation, hydrogenation and other organic reactions are also described.两相催化在烯烃的氢甲酰化反应 、 不饱和化合物的加氢反应以及其它有机反应中获得了广泛的应用.Hydroformylation of the olefinic atom economic ...
采采蝇为传染昏睡病的媒介.The tsetse fly is a bearer of sleeping sickness.昏睡症的致命感染始于采采蝇的一叮.The fatal infection begins with the bite of a tsetse fly.通过被感染的采采蝇的叮咬传染给人类.It is spread to humans through the bite of infected tsetse flies....