xe造句

• When compared with kds301 ( lexa + ) , xe ( lexa - ) cells showed quite similar levels of survival curve to y - irradiation and mmc , indicating lexa gene had no effect on radiation resistance of deinococcus radiodurans . deinococcus radiodurans " lexa had no revelance with its extremely radioresistance . the recombinant plasmid pza172 was constructed by cloning the lexa gene of deinococcus radiodurans into the vector plasmid puc19 in the downstream of lacz promoter
  对lexa基因突变体xe的研究表明，其辐射抗性与lexa基因野生型的抗辐射菌kd8301相近，存活曲线上均显示有一个宽大的肩区，结果发现lexa基因的突变并没有改变抗辐射菌的独特抗性，说明lexa基因与辐射抗性无关。
• Finally , we rebuild a soft x - ray reflectometer in 8 - 30nm region by replacing its metal target with low - debris kr and xe aerosol spray targets . reflectivity of soft x - ray multilayer mirrors are measured by the new reflectometer , and the results show the accuracy is about 2 % %
  最后，用低碎屑液体微滴喷射靶lpp光源代替污染严重的金属靶lpp光源，改建了一台波段范围8 30nm的软x射线反射率计，并对软x射线多层膜的反射率进行了大量测量，反射率测量重复性达到2 。
• Since that we could get the extreme value xe and the optimal catching efforts e . for the difficulties of giving specific expressions and computational steps for the multi - species system we took a two - dimension model as an example to interpret the steps so that the readers can get a intuitive and peculiar understanding of the process
  由于多种群系统难以给出具体的计算步骤和表达式，本文还以二维系统情况为例给出了计算和讨论的具体过程，使读者对这个问题能有更直观明确的了解
• ( 3 ) the research of lycoris on the systematical relationship of micro - morphology and anatomy is absent . it is essential to generalize the character inde xes of morphology , anatomy , cytology , palynology and molecular physiology . so we can establish classification system of lycoris and draw a reasonable family tree of lycoris
  因此，必须综合形态学、解剖学、细胞学、孢粉学和分子生物学等各方面的性状指标，才能够建立更合理的石蒜属植物分类系统，并绘制出完整的石蒜属分支系统树。