CVTree是用组分矢量方法(Composition Vector)构建系统发育树的Web服务器。组分矢量方法由郝柏林院士和他的研究组提出，统计全基因组序列中核苷酸碱基或全蛋白质组序列中氨基酸...
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The vector mark is adopted to simplify the structure and to depict the composition of the models.
采用向量标记推导模型，简化了模型结构，同时描述了模型的构成；
For the inverters of the levels of any order, this algorithm can easily judge which vector the reference space vector falls in, and conduct the composition operations of the vectors.
对于任意阶电平数的逆变器而言，这种算法能够方便地判断出参考空间矢量所落入的扇区，非常容易地进行矢量的合成运算。
Vector composition method can be well used to achieve this when the assumption of horizontally-layered medium is made.
在水平层状介质的假设条件下，利用矢量合成方法能较好地实现运个目的。
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