That matrix has properties that vary in different locations in the body, but basically it's a highly hydrated or water-rich gel.

这种基质的性质,随其所在身体部位的不同而不同,但基本是高度水合的,即富含水的凝胶

耶鲁公开课 - 生物医学工程探索课程节选

and it is the matrix of all future political ideas and arguments in the Greek world that comes after this time.

这也是希腊社会此后政治理念,和政治主张的原型

耶鲁公开课 - 古希腊历史简介课程节选

The extracellular matrix or the collagen gel gives the tissue integrity, and in part, determines its mechanical properties.

细胞外基质或者说胶原蛋白凝胶,使组织成为一个整体,在某种程度上,决定了组织的机械性能

耶鲁公开课 - 生物医学工程探索课程节选

After rudimentary purification and regeneration of the biocatalysts, the CO2 is transferred to a Biocatalytic Reactor Matrix where mass quantities of biocatalysts function in a matrix of liquid reaction chambers breaking down CO2 and turning it into hydrocarbons.

CNN: Turning carbon dioxide into fuel

If we were doing it again now, the material would be taken out in its soil matrix, put in a plastic bag and kept cool.

BBC: NEWS | Science/Nature | Team widens search for 'Hobbits'

Oh, and one other thing: Peter Drucker never drew a four-box matrix in his entire life.

FORBES: How to Consult Like Peter Drucker