Spanish to English Tech/Engineering Environment & Ecology Bioengineering, biomass production, photobioreactor, patent

I am quite frankly stumped. Most of the references I find have to do with speaking skills and verbal presentations. other than that I find very few (almost none at all) examples used exactly in this way, and just as cryptically, without any further indication of what is being described by this phrase. I find no references to it outside of the biomass-producing reactors it is used to describe.

In this paragraph alone it is used three times and this pattern is repeated many times throughout the text. The example below is part of the description of the bioreactor's physical construction. The document itself seems to be part of a patent application.

At first, for lack of any better references, I thought it described a physical contact relationship that allowed for the free flow of fluids; the medium in which the biomass culture grows. But I have been told in no uncertain terms that this is far from the truth. So now I’m thinking some kind of solid surface connection, perhaps a joined manufacturing technique, or maybe something involving some kind of bonding. That’s not good enough, though, I need to know what it is.

Help, please.

[Sample]

...consiste en un sistema de obtención de biomasa de microorganismos fotosintéticos, que incluye un fotobioreactor que comprende un panel transparente formado de dos láminas transparentes con una separación entre ellas, con una transparencia superior al 90%, con una abertura superior y una abertura inferior, con subdivisiones paralelas transparentes, formando un panel de celdas transparentes dispuesto de manera vertical, en donde cada celda transparente tiene una abertura superior y un abertura inferior; una cámara de recirculación inferior en ***comunicación fluida*** bajo dicha abertura inferior del panel transparente; una cámara de recirculación superior en ***comunicación fluida*** sobre dicha abertura superior del panel transparente; un tubo de distribución de gas dispuesto externamente en el borde inferior de dicho panel de celdas; en donde dicho tubo de distribución de gas comprende inyectores de gas dispuesto en ***comunicación fluida*** con el interior de una pluralidad de dichas celdas transparentes...