An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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time scale
  مرپل ِ زمان  
marpel-e zamân
Fr.: échelle de temps  

A measure of duration of a specific process, such as → crossing time, → dynamical time scale,
→ evolutionary time scale, → Kelvin-Helmholtz time scale, → nuclear time scale, → photon escape time, → relaxation time,
→ star formation time scale.

See also: → time; → scale.