牙髓病學(xué)研究牙根、牙髓及其周圍組織疾病的牙醫(yī)學(xué)的一個(gè)分支 The branch of dentistry that deals with diseases of the tooth root, dental pulp, and surrounding tissue.
她接受了骨髓移植手術(shù)。 She had a bone-marrow transplant.
牙髓神經(jīng)牙髓里的感覺組織 The sensitive tissue in the pulp of a tooth.
那個(gè)理論的精髓是為人民服務(wù)。 The pith of that theory is serving for people.