血管密度高的核团包括了脑桥核、下橄榄核簇等与小脑相连系的核团，及楔束核、上橄榄核和展神经核；

The high density nuclei consist of the pontine nuclei, inferior olivary complex and so on which have connections with cerebellum, cuneate nucleus, superior olivary nucleus and abducent nucleus.

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结论：腰椎椎间失稳可诱发椎体楔变和骨密度减低，致脊柱后凸畸形及骨质疏松。

Conclusions: Wedging and bone mineral density decreasing of the vertebral body may be induced by spine instability, which contribute to kyphosis and osteoporosis of th spine.

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靠近压力加工面部位，硬度较沉积坯提高了45%，拉伸强度较沉积坯提高了40%。 双向楔压后孔洞闭合、密度硬度分布都比较均匀。

Compared with those of as-sprayed ring, hardness and tension strength of area near processing face are increased by 45% and 40% respectively.

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