可以产生血细胞的器官，主要是骨髓、淋巴结和脾脏【解】haematopoietic organ(Britain); hematopoietic organ(US)

• 人体内的血液成份及造血器官对各种药物的作用较为敏感。

  In the human body, blood components and haematopoietic organs are relatively sensitive to the effects of various drugs.

• 晚上十一点至凌晨一点这个时间是人体造血器官最活跃的时候。

  The time between 11pm and 1am is when human haematopoietic organs are most active.