钢索在桥塔或塔柱的不同高度上相交.The cables intersect the tower or pylon at different heights.这座桥是由系在两座桥塔上的粗大铁链支承的.The bridge was supported by heavy iron chains hanging from two towers.悬索桥的结构部分可大致分为桥塔 、 主缆 、 吊杆 、 加劲梁、锚碇等.The bridge cons...
Recombinant plasmid pDAlllS was constructed by inserting 1.7 kb aprA into the Nrul site of aveD.将1.7kb安普霉素抗性基因aprA插入aveD的 NruI位点,得pDA1118.Aati - tumors : The dye lignin has the cytotoxin activeness to the human boby rhin...
There are several modifications of the dendritic design.树枝状图样有几种变态.Interpretations based on the possible existence of a dendritic pattern are somewhat speculative.以树枝状形态的可能存在为基础的解释是有些冒险的.Dendritic cell ( DC ) is the most...