Cell Stems are so powerful because they have the amazing ability to transform and grow into other types of cells - such as blood cells or bone cells.

干细胞具有如此强大的功效，原因在于干细胞拥有转化并成长为其他类型细胞- - -如血球或骨小体的神奇能力。

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All blood cells are produced in the bone marrow. As children, most of our bones produce blood.

所有血细胞都在骨髓中生产。对孩子们来说，我们的大多数骨骼都产生了血细胞。

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Attempts to grow replacement bone by placing stem cells in a culture chamber of the desired shape have not been very successful, with the cells often dying or producing only weak bone.

以前通过将干细胞置于特定性状的培养腔内，以培育出再造骨骼的尝试并不太成功，细胞往往会死亡，或者仅培育出很脆弱的骨骼。

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All these cells come from the bone marrow and biologists have traced the formation of these cells in great detail.

所有这些细胞都来自骨髓,而生物学家已经很详细地,研究了这些细胞的形成过程

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You know probably that within your bone marrows there's populations of cells, there are different kinds of cells within the bone marrow.

你也许知道的,在你的骨髓里,有许多种细胞,骨髓中有不同种类的细胞

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If you were searching for unique populations of cells within the bone marrow what tools would you use to look for them?

如果你要在骨髓中,找一组特定的细胞群,你用什么工具来找呢

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If a match is found the donation of bone marrow involves the removal of stem cells from the hip bone.

BBC: Spit test for bone marrow matches

But he's received an infusion of the donor's bone marrow cells to further prevent rejection of his new arms.

CNN: Iraq vet undergoes successful double-arm transplant

The researchers also demonstrated that severe injury is not necessary for the formation of mature liver cells from bone marrow cells.

BBC: First steps towards artificial organs