But the only choices hae been glass labware and a product called Matrigel, a gelatinous protein mixture secreted by mouse tumor cells.
但是，玻璃材质的试验器皿是唯一的选择，另外就是基质胶，是一种由大鼠肿瘤细胞产生的胶状蛋白混合分泌物。
This tumor has gelatinous material within it .
肿瘤内含胶冻样物质。
This tumor has gelatinous material within it.
肿瘤内含胶冻样物质。
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