常見例句This primary bone tumor mainly occurs in the diaphysis of long bones of children and young adults.There is a slight male predominance.這種原發(fā)性骨腫瘤主要見于兒童與青少年的長骨骨干，稍多見于男性。long bone diaphysis fractures in lower limbs下肢長骨干骨折 返回 diaphysis