Efficient power flow is calculated by means of tree technique and recursion, which do not need resistance or admittance matrix.
运用树的遍历技术进行实用潮流计算，递归方程的使用使得编程简单，并且不需要形成阻抗阵或导纳阵。
According to the flame retardancy of bark and the fire resistance of the 5 tree species, we commended forest fire protection measures correspondingly.
根据5种树皮的阻燃性和林木耐火性差异提出相应的森林消防措施。
Theoretic guides for tree species selected, proper arrangement and perfect manual vegetation system reconstruction will be provided by study on traits of tree species drought-resistance.
通过树种耐旱生理、耗水特性等指标的研究，可为合理选择树种并进行适当搭配，建立较为完善的人工植被恢复系统，提供理论依据。
Methods of soil auger and pot experiment were used to research vertical root distributions and drought resistance of main planting tree species in the Weibei loess plateau.
采用土钻法和盆栽试验研究了渭北地区主要造林树种的垂直根系分布特征及其抗旱性。
Resistance of rice on seedling age and quantity was experimented with based on the design of two factors (seeding time and quantity) and tree levels.
采用播期和播量二因素三水平随机试验设计，研究了水稻秧龄和播量在抗逆方面的作用。
The fire resistance mechanism lies in three aspects, namely fire resistant tree species, rational construction forest belts and its environment.
防火林带阻火机理有三个层次：防火树种、结构合理的防火林带及其形成的火环境。
These proteins are probably related closely to resistance of TPD in rubber tree. Their functions need to be further validated.
这些蛋白可能与橡胶树耐割面干涸病密切相关，其功能还有待进一步的分析验证。
California Baby? Resistance Builder? Essential Oil Blend helps to stimulate the immune system's own defenses by utilizing the anti-bacterial properties of tea tree and lavender.
加州宝宝的增强抵抗力精油通过使用抗菌的茶树和薰衣草来刺激免疫系统的自我防预能力。
The protection forests were built with five Acacia tree species on coastal sandy soil in Dongshuan County, and their wind-resistance and drought-resistance was tested also.
应用大叶相思、肯氏相思、毛娟相思、马占相思和厚荚相思等相思树种在东山县沿海沙地上营建防护林，并对其抗风、抗台风及抗连续干旱性能进行了测定。
Five years when they were sheltered in exile here in Britain, the Norwegian resistance would send a Christmas tree every year in secret to their exiled king to remind him of his homeland.
挪威人民为了让他们的国王不要忘记自己的祖国，在那五年里每年都会秘密的送一棵挪威的圣诞树到国王的身边。
Five years when they were sheltered in exile here in Britain, the Norwegian resistance would send a Christmas tree every year in secret to their exiled king to remind him of his homeland.
挪威人民为了让他们的国王不要忘记自己的祖国，在那五年里每年都会秘密的送一棵挪威的圣诞树到国王的身边。
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