，胶Single cancellous osteomas, unlike exostosis, are a relatively rare lesion in the external auditory canal.
单一性疏松
瘤，不像外生
，
一个外耳道较少见
病灶。
,多孔Single cancellous osteomas, unlike exostosis, are a relatively rare lesion in the external auditory canal.
单一性疏松瘤，不像外生，一个外耳道较少见病灶。
Blood production —The marrow, located within the medullary cavity of long bones and the interstices of cancellous bone, produces blood cells in a process called haematopoiesis.
造血-髓位于长髓腔和松质间隙内，髓通过造血作用产生血细胞。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件观点；若发现问题，欢迎向我们指正。
