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.
血-骨髓位于长骨髓腔和松质骨间隙内，骨髓通过血作用产生血细胞。
,裂缝,
成空隙;;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.
血-骨髓位于长骨髓腔和松质骨间隙内，骨髓通过血作用产生血细胞。
There is a gleam of luminous gold, where the sinking western sun has found a first direct interstice in the clouds.
从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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