中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。
The stele includes all primary tissues derived from the procambium consists of pericycle, phloem and xylem.
中柱包括从原形成层衍生而来的全部初生组织，由中柱鞘、韧质部和木质部组成。
The stele includes all primary tissues derived from the procambium consists of pericycle, phloem and xylem .
本文主要综述了鞘氨醇等衍生脂质的化学研究，特别是它们的化学合成进展。
Herein we review the chemical studies on sphingosine and related lipid derivatives, with focus on their chemical synthesis.
目的：观察嗅鞘细胞和骨髓间充质干细胞联合移植修复脊髓损伤的效果。
OBJECTIVE: To investigate effects of OEC and BMSC transplantation for treating injured spine cord.
目的：观察嗅鞘细胞和骨髓间充质干细胞联合移植修复脊髓损伤的效果。
OBJECTIVE: To investigate effects of OEC and BMSC transplantation for treating injured spine cord.
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