English Bus/Financial Education / Pedagogy Academia

Context:

"Major streamlines of international exchange
The top 8 countries (...) that are the most visitied by [FUNDING SCHEME 1] beneficiaries are identical in statistic analyses as well as in our survey and indicate major streamlines of international exchange with [COUNTRY]. For the top 3 of these countries this holds also true for[FUNDING SCHEME 2] in both exchange directions."

The author has me rather confused here. I get the gist of it, but what do they really mean by "major streamlines"?

* Sentence or paragraph where the term occurs: See above
* Document type: Survey
* Target audience: Research funding body
* Country and dialect (source): English (by a German or Luxembourger)
* Country and dialect (target): British English