According to the analyse of petrochemistry, microelement, lanthanon and cause of formation type of rock body, sum up the all sequences are S-type granitoid .
经岩石化学特征、微量、稀土元素地球化学特征研究以及岩体成因类型图解判别，获得五个序列岩体均为S型花岗岩的认识；
In this paper, we give a method to determine whether a minimal zero-sum sequence is splitable or insplitable and we also give some examples of insplitable minimal zero-sum sequences.
本文给出了判别最小零和序列是不可分的一个判别方法，并且还给出了一些不可分最小零的序列的例子。
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