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Bone marrow is a sponge-like tissue inside the bones .

骨髓是骨头内如海绵状的组织。

But I really don 't like fat in my marrow .

不过我真的很讨厌骨髓里有脂肪。

And a new device that we call the marrow miner .

这个新发明就是骨髓采集器。

A doctor slid a long needle into his hip bone and drew out marrow for analysis .

一个医生把长针头刺进他的髋骨，抽取了骨髓以供分析。

It may be associated with primary marrow disease such as in megakaryocytic leukemia .

这可能与原发性骨髓疾病有关，如巨核细胞白血病。