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Discover LudwigThe phrase "at extension" is correct and usable in written English.
It can be used in contexts related to telecommunications or when referring to a specific extension number in a system.
Example: "You can reach me at extension 1234 during business hours."
Alternatives: "at the extension" or "on extension".
Exact(60)
Register at extension 308.
Materials fee: $5. Register at extension 215.
Reservations are required, at extension 114.
What makes teaching at Extension unique?
I began teaching at Extension in 2007.
Why take your Spanish courses at Extension?
To register, call the Children's Center at extension 110.
I became a more confident student at Extension.
Swati is now an Instructional Designer at Extension Engine.
Stress at extension type of analysis was chosen on the MTESTQuattro software (ADMET, MA).
Both types of prosthesis had about 4° laxity at extension and 3° at flexion.
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