单词spinal-marrow
na.: 脊髓网络: 背髓
unprotected spinal marrow was all he needed.
单单一根脊髓就可满足他的全部需要了。
Application of Omentum Transplantation to Spinal Marrow in Late Paralysis Surgery
带蒂大网膜脊髓移植治疗晚期截瘫患者的临床研究