OXB-IR fibers were located in the central gray substance, superior and inferior colliculi.

OXB-IR 纤维位于中央灰色物质，上，下丘脑中。

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In the mesencephalon, OXB-IR fibers were located in the central gray substance, superior and inferior colliculi, interpeduncular nucleus and raphe nuclei.

在中脑分布于中脑中央灰质、前丘、后丘、脚间核和中缝核；

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The other bundle from PVN, the medial, descends through diencephalic periventricular gray, periaqueductal gray, floor of ventricle IV, SVC and medullary-spinal central gray.

内侧径路经间脑室周、中脑中央灰质、第四脑室底、孤束核—迷走背核复合体、延髓与脊髓中央管周下行。

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Effective or not, an American spy operation directed at its own citizens infects the country's central nervous system, even granting arguable gray areas.

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