本课题将力学原理与生物体的生物性能结合起来，揭示东北云杉风倒的力学机理。
Mechanical mechanism of the windthrow of scale spruce in the northeast area have been opened out in the study, which combine mechanics with the biology properties in tree.
影响风倒的主要因素包括林木的生物力学特性、根系与土壤的相互作用和风的扰动等。
The major factors to affect windthrow contain the biologic mechanical attribute of tree, the mutual action of soil and base, disturbance of wind and so on.
林隙形成方式由树木折干形成的最为普遍，占形成木总数58.04％，其次是由于掘根风倒而形成的，占33.48％。
The most popular manner of gap formation in the forest was stem breakage (58.04% of the total), and the second, uprooting (33.48%).
应用森林健康理论，分析得出威胁祁连山森林健康的主要自然灾害为病虫鼠害、雪折、风倒滑坡、气候干旱及森林组成和林分结构不合理；
According to the theory of forestry health, the forestry health in Qilian Mountain is affected by mice pest, snow break, landslide, drought and unreasonal forestry stand structure and so on.
我们需要唤醒美国人、当然尤其是欧洲人这样一个认识，即他们的国家在处理中东事务时，不是傲慢无礼、就是两头草随风倒，而且经常愚蠢透顶。
Europeans in particular, and also Americans, need their memories jogged about just how arrogant, duplicitous and frequently stupid their governments have been in dealing with the Middle East.
我们需要唤醒美国人、当然尤其是欧洲人这样一个认识，即他们的国家在处理中东事务时，不是傲慢无礼、就是两头草随风倒，而且经常愚蠢透顶。
Europeans in particular, and also Americans, need their memories jogged about just how arrogant, duplicitous and frequently stupid their governments have been in dealing with the Middle East.
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