'reflected throughout' is a perfectly suitable phrase to use in written English.
You could use it to refer to an idea that has been expressed and echoed in multiple places. For example, "The importance of learning to collaborate was reflected throughout the organization's mission statement."
It's a pattern reflected throughout the continent.
And its economic woes are reflected throughout performing arts institutions.
"Our commitment to diversity is reflected throughout our giving," Ms. Quiroz said.
This balance was reflected throughout his time in the support given to the two parties.
Regional strengths are reflected throughout, with the best new entrant named as Artichoke in Buckinghamshire.
This laughably partisan sentiment has been reflected throughout the other right-wing titles.
We therefore deemed necessary to look deeper into students' interactions by guiding the activity and stimulating students to reflect throughout the learning process at the same time.
We believe that by guiding and prompting students to reflect throughout the learning process we can help them embed cognitive activity in the environment (a) by reducing cognitive load (Paas & Sweller, 2012), and (b) by internalizing sensorimotor routines derived from the perceptual and interactive nature of the manipulatives (i.e., Pouw, Van Gog, & Paas, 2014).
"It's my prerogative to see myself reflected everywhere throughout the ages".
Arab observers said the problems surrounding the conference reflected ambivalence throughout the Arab world to offering peace to Israel at a time when it seemed poised to reoccupy Palestinian territory by force.
Most of Facebook revenue comes from selling advertisements on the site, and eMarketer said its new estimates reflected "underperformance throughout the first half of 2012, along with questions about the effectiveness of some of the site's ad products".
