目的: 检测无汗性外胚层发育不全患者的EDA基因 的突变.Objetive : To detect the gene mutation of a patient with anhidrotic ectodermal dysplasia.此外,Nodal信号还在胚胎的左右不对称发育及神经外胚层的前后轴线分化中起重要的作用.Nodal signals also play pivotal roles in left - right asymm...
The methods employed are old-fashioned and uneconomical.采用的方法很老套，没什么效益。Aspheric optical parts manufacturing is an acknowledged difficulty and it is uneconomical.非球面光学零件加工是当前国内外公认的难题.The methods employed are old-fashioned...
In order to strengthen corona effect, arista electrode used as substitute for grid electrode was presented.为了加强电极电晕效果, 提出了用芒刺电极代替栅网电极.Wires criss-cross between the tops of the poles, forming a grid.电线杆顶端的电线相互交错，形成电线网。Gri...
a manuscript reproduced in facsimile精确复制的手稿This a facsimile edition of an eighteenth century book.这是一本18世纪书籍的复制版.This is a facsimile edition of an eighteenth century book.这是一本18世纪书籍的复制版。...