The phrase "multiple existing" is correct and usable in written English.
You can use it to emphasize the existence of multiple things. For example, "There are multiple existing solutions to this problem."
This paper presents GLUE!, an architecture that enables the lightweight integration of multiple existing external tools in multiple existing VLEs.
Select No if you wish to inactivate multiple existing reversion rules.
What if the basis of competition in market creation is really the intersection of multiple existing markets?
Increasingly, software systems are constructed by integrating and composing multiple existing applications.
This study investigates the high-level ensemble of multiple existing efficient DE variants.
These developments indicate that a new paradigm, integrating multiple existing preservation approaches and new technologies that have flourished in the past 10 years, could transform preservation research.
The Internet of Things (IoT) idea, explored across the globe, brings about an important issue: how to achieve interoperability among multiple existing (and constantly created) IoT platforms.
Historically, simulation of an entire reactor was accomplished by linking together multiple existing codes that each simulated a subset of the relevant multiphysics phenomena.
In this framework, the use of multi-objective techniques are especially useful since they allow to study the different design alternatives based on the multiple existing criteria.
The combination of multiple existing grid spacers can reduce the MCST to a certain level, but the corresponding disadvantages cannot be ignored.
Cohen and the team will combine multiple existing and new data sets, including U.S. demographics, social network data, census and Google Street View information, psychological data, and employment and earnings statistics.
