A new method for separating and purifying p - AAB ( p - aminoazobenzene ) by dry - column chromatography is developed.提出了一种干柱层析法 分离提纯 试剂对氨基偶氮苯的新方法.The present invention provides membrane separating and purifying process ...
They set up purifying systems in places where the water was not potable.他们在许多水质不适合饮用的地方建立了净化系统。Changing iron into steel is a process of purifying the iron.把铁炼成钢是铁的精炼过程.The extra step would increase the margin of safety b...
She went to Sheffield University as a lecturer, under the aegis of Boris Ford.在鲍里斯·福特的支持下，她去了谢菲尔德大学讲课。The space programme will continue under the aegis of the armed forces...这项太空计划将以武装部队作后盾继续进行。under the unfailing aegis ...
There are some agencies now specialising in helping older people to find jobs which pay.现在有些机构专门帮助年龄较大的人找有报酬的工作。Teresinha Roberts is a Brazilian - born textile artist specialising in natural dyes.使用天然染料是让人兴奋和沉醉的.Both bec...
Margaret and Gerard cast a scared look at one another.玛格丽特和杰勒德彼此畏怯地望了一眼.Gerard also took on wider familial respon-sibilities.杰勒德还承担了更多的家庭责任。Gerard was no longer lightheaded, but very irritable.杰勒德不再头晕, 但非常烦燥.He loved Ger...
在 1691年 的《学报》中詹姆士?伯努利推导出跟踪曲线的方程.In the " Acta " of 1691 James Bernoulli derived the equation for the tractrix.伯努利是个瑞士科学家,曾于1752年为轮船的螺旋浆绘制图纸.Bernouili was a Swiss scientist who described a screw for ships in 1752.采用满足伯努利分...