锌基合金的压铸件总是在氰化镀液中镀铜.Zinc base die castings are always copper plated in cyanide baths.氰化叠氮的灵活多变的化学性质是可控制的.It is possible to harness the versatile chemical properties of cyanogen azide.它们和氰化无物和砒霜一样致命.They're as deadly ...
Books provide children with ideas and a stimulus for play.书不仅给孩子们以思想,而且使他们玩得更有意思。Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励.Poverty is a stimulus to industry.贫穷能使人勤劳....
Tim has longish, shaggy hair.蒂姆留着蓬乱的长发。She's about my age, with longish hair.她年龄与我相仿,头发较长。Cinderella Skeleton Picked the lock with a longish pin.辛德瑞拉·斯葛里顿用一根长长的大头针撬开锁....
结论化合物~为首次从铁线莲属中分离得到.CONCLUSION Compound ~ are isolated from Clematis genus for the first time.目的研究秦岭铁线莲挥发油化学成分.Objective To study the chemical components of volatile oil from Clematis obscura.如果我的铁线莲得了枯萎病, 我是否能做点什么?If my...