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。
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。
The composition processing of the space vector is also been analyzed, the reference voltage vector can be achieved correctly because there are more space voltage vector can be utilized.
还分析了采用多相空间电压矢量控制时，一个周期内电压矢量的合成过程，由于多相逆变器可供使用的空间电压矢量数目多，因而能够准确地输出给定电压矢量。
The observation results with transmission electronic microscopy showed that the composition of dendrimer vector and DNA caused shrink of DNA structure.
透射电镜测试结果表明，树枝状高分子载体与DNA的复合导致DNA结构收缩，粒径减小，分布均匀。
The observation results with transmission electronic microscopy showed that the composition of dendrimer vector and DNA caused shrink of DNA structure.
透射电镜测试结果表明，树枝状高分子载体与DNA的复合导致DNA结构收缩，粒径减小，分布均匀。
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