The phrase "are needed in certain" is correct and usable in written English.
It can be used when discussing requirements or necessities that apply to specific situations or contexts.
Example: "Resources are needed in certain projects to ensure their success."
Alternatives: "are required in specific" or "are essential in particular".
For example, CCTV cameras are needed in certain locations on the platform to ensure full coverage of the movement of passengers getting on and off the trains.
Jonathan and Charlotte can combine their powers to perform a powerful attack together known as "Dual Crush", and their combined abilities are needed in certain parts of the castle for them to solve puzzles and progress through the story.
Accordingly, closer monitoring and more intensive multidisciplinary support are needed in certain cases.
Strengthening healthcare infrastructure and additional financial support are needed in certain locations for sustainability and implementation at a national level.
However, more information and experimental data are needed in certain aspects of the study to fully address the question being investigated.
But he also believes that democratic consent is needed in certain areas, such as criminal justice.
Baraa Shaiban, a youth activist, supports this approach: "Short-term solutions might be needed in certain places, but it won't solve things in the long term.
Radical esophagectomy with regional lymph node dissection may also be needed in certain cases to minimize potential recurrence.
The regulator also intends to use the market studies to advise the Commerce and Employment Department on whether or not further regulation may be needed in certain areas.
But some science publishers had argued the longer delay was needed in certain research fields to protect journal subscriptions and society revenues.
Further optimization was needed in certain areas however.
