rut, wheel, track, model, way of doing
軌 centers on a fixed path or guiding framework: a wheel track or rut, and by extension a model or established way of doing things.
軌 combines 車 (vehicle) and 九, which likely contributes the sound and suggests the groove of a wheel track. The extended meanings of model or way of doing come from the idea of a fixed path.
A vehicle 車 follows the groove 九 of a wheel track, like a train on rails. That fixed path becomes a model for how things are done.
For キ, imagine a key guiding a vehicle along its track: key -> キ, and the key keeps the wheels in the rut.
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orbit; trajectory
tire track
normal course (of action); proper course; regular way
rut; wheel track
trackless
rail (of a railroad)
(railroad) gauge
lawlessness; violation of customs
ICO; Intermediate Circular Orbit
handcar railroad; handcar railway
low orbit; low Earth orbit; LEO
rail track laid on a road
circular orbit
molecular orbital; MO
half-track (vehicle)
monorail
geosynchronous orbit
orbit
low Earth orbit
earth orbit; geocentric orbit