The phrase "a complex and demanding" is correct and usable in written English.
It can be used to describe a task, situation, or subject that requires significant effort, skill, or understanding.
Example: "The project was a complex and demanding undertaking that tested the team's capabilities."
Alternatives: "challenging and intricate" or "difficult and multifaceted".
Replacement prescribing with methadone and recently buprenorphine forms the main plank of medical treatment for opioid dependency in the United Kingdom, reflecting a comprehensive and evolving evidence base which consistently demonstrates the effectiveness of methadone in delivering positive outcomes in a complex and demanding population [ 13- 15].
Manufacturing system design is a complex and demanding activity and the system designer has to take many factors into consideration during the development process including the demand and technological requirements of the products or product families.
He characterized the process as a "complex and demanding challenge".
The chancellor was within his rights, it should be said – his powers of intervention are part of what the FCA coyly calls "a complex and demanding stakeholder landscape".
Leading a jazz band is a complex and demanding occupation, related to - but not at all the same thing as -playing the music.
Organizing such a complex and demanding show, on view in the gallery and outdoors across a two-acre site, is ambitious, especially given that some of the pieces weigh several tons and required the use of cranes to move.
But in this new era of lengthening unemployment lines and shrinking university endowments, questions about the importance of the humanities in a complex and technologically demanding world have taken on new urgency.
From this large set of solutions, good compromise solutions have to be identified which is a complex and computationally demanding task.
As the regulation of ICOs and the cryptocurrency markets continues to expand, companies operating in the virtual currency ecosystem must develop policies, technologies, and controls to comply with a complex and increasingly demanding framework of federal laws.
The news came as a shock in music circles, where Diaz is hailed as one of the world's leading exponents of Afro-Cuban percussion, a complex and physically demanding discipline.
Pterosaurs were the first vertebrates to evolve true flapping flight, a complex and physiologically demanding activity that required profound anatomical modifications, most notably of the forelimb [1] [7], but which subsequently conferred great success in terms of clade longevity and diversity.
