The genealogy of the H1N1 virus family would explain why exposure to a swine lineage via the 1976 vaccine or to older human lineages offers cross-protection against the new strain.
By analyse structure's strain, we can gain lots of information including the danger cross section and fatigue level. Also we can estimate the structure's life.
通过对结构应变进行分析，可获取结构的危险截面和疲劳程度等信息，并可对结构的寿命进行估计。
3
W025 is a new rice strain developed from chemical inducement and cross breeding. It has a giant embryo that is controlled by a single recessive gene.