The phrase "a long presentation on" is correct and usable in written English.
It can be used when referring to a detailed or extensive presentation about a specific topic.
Example: "The professor delivered a long presentation on the impacts of climate change on global ecosystems."
Alternatives: "an extensive talk about" or "a detailed lecture on".
If you let on your ignorance, most owners, rather than sneering, proudly launch into a long presentation about their wines, their grapes and their history.
The Nobel Peace Prize winner, who gave an hour-long presentation on climate disruption and its solutions in Manila this week, said there was "basis for genuine hope" that the world can curb climate change.
I made the case in an hour-long presentation on the House floor.
Following that statement, you might reasonably expect anything from someone zipping their pants up and down to an hour-long presentation on the history of zippers - it's hard to tell!
It may well turn out that Apple Pay — whose introduction was sandwiched between long presentations on the new iPhones and the Apple Watch — is the more important product that Cook unveiled.
WASHINGTON — With House Republicans gathered behind closed doors this month at a resort in Williamsburg, Va., Representative Eric Cantor hushed the crowd with a long slide presentation on the prospects of a government default.
These slideshows are broken into 5-15 minute-long presentations on a variety of topics.
Future fMRI studies using this approach may enable novel, more natural reading situations, thereby avoiding some of the methodological problems of previous studies (e.g., uncontrolled top-down influences on activation, artificial tasks, long presentation times), which are likely to be the underlying cause for the inconsistent findings regarding the VWFA.
There was pop music, teleprompters and a long PowerPoint presentation.
The Californian gadget-maker announced two new iPhones and a new Apple Watch in its long-awaited presentation on Tuesday.
