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-骨髓位于长骨髓腔和松质骨间隙内，骨髓通过造血作用产生血
。
,裂缝,
空隙;;区域;;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-骨髓位于长骨髓腔和松质骨间隙内，骨髓通过造血作用产生血。
There is a gleam of luminous gold, where the sinking western sun has found a first direct interstice in the clouds.
西落太阳在云层里发现
一个直接空隙处，透出一缕金光。
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