血液学学者

例句：

1. 1. He is a renowned expert in the field of hematology.
   他是著名的专家，专攻血液学。
2. 2. Blood tests are crucial for diagnosing and treating various diseases.
   血液测试对于诊断和治疗各种疾病至关重要。
3. 3.The study of blood cells is called hematology.
   研究红细胞的研究称为血液学。