The formation flying around Lagrange points will benefit deep space exploration greatly due to the special location of the Lagrange points.

由于拉格朗日点的独特空间位置，它附近的编队研究对深空探测有着很重要的意义。

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Conclusion: parapharyngeal space is deep in the tumor location and special. Most are benign. Malignant one is rare. Surgical resection is the basic method of treatment. Cancer has poor prognosis.

结论：咽旁间隙肿瘤位置深在、特殊，大部分为良性，恶性少见，手术切除是主要治疗方法，恶性肿瘤预后较差。

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