gelatinous

Two cell layers (diploblastic) separated by a gelatinous mesoglea.

两层细胞(两胚层)，中间是凝胶状的中胶层。

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，是一种由大细胞产生的胶状蛋白混合分泌物。