研究表明，基质介电常数过高或过低、基质尺寸过厚或过薄，都会使天线的性能显著下降。

The results show that too high or too low dielectric constant of the substrate, too thick or too thin of the substrate size can affect the antenna performance obviously.

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人们给它起过各种各样的名称，如“基质”、“透明质”等等。

It has been given a variety of names, such as "ground substance", "hyaloplasm", and others.

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We talked last time about extracellular matrix and this complex protein-carbohydrate gel that surrounds all cells.

我们上次谈到过的细胞外基质,是一种蛋白和碳水化合物的复合物胶冻,它环绕在细胞周围

耶鲁公开课 - 生物医学工程探索课程节选