matrix cell的用法和樣例：
例句
- A second cell type is the endometrial stromal cells.
第二種為子宮內膜間質細胞。 - HIM is the soil of orientation, proliferation, differentiation and development of HSC, of which hematopoietic stromal cell is an important component.
人臍血中是否存在造血基質細胞及其生物學特點如何，臍血基質細胞能否在體外有效擴增，國內外相關的系統性研究較少。
