| 释义 |
dec·us·sa·tion AHD[dĕk'ə-sāʹshən, dē'kə-] D.J.[ˌdekəˈseɪʃən, ˌdiːkə-]K.K.[ˌdɛkəˈseʃən, ˌdikə-]n.（名词）- A crossing in the shape of an X.交叉：X形交叉
- Anatomy An X-shaped crossing, especially of nerves or bands of nerve fibers, connecting corresponding parts on opposite sides of the brain or spinal cord.【解剖学】 （神经纤维）交叉：X形交叉，尤指神经或神经纤维带的交叉，把相应的部分连接在脑或脊髓的另一面
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