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Discover LudwigThe phrase "a working prototype of" is correct and usable in written English.
It can be used when referring to a functional model or version of a product or concept that is still in development or testing phases.
Example: "The team presented a working prototype of the new smartphone at the tech conference."
Alternatives: "a functional model of" or "an operational version of".
Exact(60)
A year later, Zhang and his team showed off a working prototype of VOOC to the same colleagues who initially rejected the idea.
and a working prototype of the system.
A working prototype of the Autonomy is scheduled to be shown later this year.
He displayed a working prototype of a tablet PC, one of a handful in existence.
A working prototype of the compact unit, he says, is still a year away.
A working prototype of the car will be unveiled next year.
Mitra and Wong have already demonstrated a working prototype of a high-rise chip.
Even with that background, and a working prototype of his Game Boy idea, many potential investors were skeptical.
The USPTO has taken to requiring a working prototype of anything that purportedly breaches the laws of physics.
We have developed a working prototype of a real-time aptamer-based fluorescent flow sensor.
A working prototype of a novel low-cost Halbach-array-based NMR system is described.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com