The phrase "a certain service" is correct and usable in written English.
It can be used when referring to a specific service without naming it directly, often in contexts where the exact service is either unknown or not relevant to the discussion.
Example: "The company offers a certain service that caters to the needs of small businesses."
Alternatives: "a specific service" or "a particular service".
The price is decided mostly basd on the labor and material spent on a certain service.
The formulated problem consists of the minimization of the thermal surface area for a certain service, involving discrete decision variables.
Each piece of land was held under a particular condition of tenure that is, in return for a certain service or payment.
As examples for application, the creep rupture life under a certain service conditions of Gr. 91 steel was reasonably drawn from the viewpoints of reliability.
In this situation, many consumers, who want a certain service, and many providers, who supply those services, form a competitive market.
Customers face random demand, and each DC maintains a certain amount of safety stock in order to achieve a certain service level for the customers it serves.
These strategies exploit the fact that one wireless technology might be better suited to support a certain service-class than another one due to different granularities of distributable resources, different coding, and modulation schemes.
As these tariffs are fixed, claims data only provide information on the utilization of a certain LTCI service per se, but not on the intensity of service utilization.
Some analysts question whether customers acquired through bundled deals are as valuable as those who actively seek out a certain music service.
Low temperatures and the extra layers of wool, down and fur they require mean high season for members of a certain unsung service trade: the coat checkers.
If you bought a 2009 model GM car, you may have had the option to add a certain OnStar service.
