Mutations of Axin have been identified previously in cerebellar medulloblastomas, hepatocellular carcinomas , brest carcinoma and hepatoblastomas.已经在人髓母细胞瘤 、 肝细胞肝癌 、 肝母细胞瘤及乳腺癌中检测到了Axin基因的突变....
Mariners were also able to fix their latitude by using an instrument called astrolabe.海员们还可使用星盘这种仪器确定纬度。prismatic astrolabe棱镜等高仪Other early instruments included the sextant and the astrolabe.另外的早期仪器还有六分仪和星盘.photoelectric...