Now , with the help of progressing molecular biotechnology , it has become possible of explaining the molecular mechanism of male sterility 分子生物学技术的发展则为从分子水平阐明白菜雄性不育发生机理提供了重要的工具。
The results indicate that afm has become a useful tool for the analysis of the structural and functional change of dna induced by radiation 结果表明， afm显微技术，是在分子水平上研究辐射所致dna结构和功能变化的有力工具。
These studies have significance for thoroughly understanding of the interface property and surface property of liquid crystals in the molecular level 以上的这些研究对于在分子水平上深入了解液晶的界面性质及表面性质有着重要意义。
Skin can be observed in its native state in vivo without the fixing , sectioning and staining that is necessary for routine histology 它能在活体组织观察细胞形态和组织结构，甚至在使用增强对照的试剂后，能在分子水平观察细胞的活动。
With the developments of molecular biology and bioinformatics , it is possible to elucidate the phylogenetic evolutionary relationship of cruciferae at the molecular level 随着分子生物学和生物信息学的发展，从分子水平阐明十字花科植物系统演化关系成为可能。
Screening of a potato genomic library with a full - length sb401 cdna resulted in the isolation of six positive clones . one of clones , designated 901 , was further characterized 对花粉发育过程中特异表达基因的研究，科学家们希望从分子水平上阐明小孢子发育的本质。
The results not only provide evidences for the study of early embryonic development mechanism in silkworm , but also give clues for the study of insects diversity 这一结果不但可以为家蚕胚胎发育调控机制的分子水平研究提供重要参考，也可为昆虫分化多样性的分了机制研究提供线索。
In the scale of molecule , we cannot ignore the random collision between liquid molecules and motor . so the movement of motor has the features of brownian movement 在分子水平的尺度上，细胞液中的液体分子对马达的无规碰撞已经不能忽略，因此分子马达的运动具有布朗运动的特征。
Utrafiltration ( ul ) ? ultrafilltration is a membrane process with the ability to separate molecules in solution on the basis of size . the separation process is driven by pressure 超滤- - -超滤是利用膜在两侧的压力差和筛分原理，在分子水平上使不同粒径的混合物在通过超滤膜时，实现选择性分离。
These studies demonstrate that tumor and normal endothelium are distinct at the molecular level , a finding that may have significant implications for the development of anti - angiogenic therapies 这些研究结果表明正常和肿瘤细胞在分子水平上的表达不同，并暗示了对于抗血管发生的策略的发展。
