Ying this magnetic Bible encyclopedia of 03 entry point north end into the base standard 順 time 針 amount to the center of the runway on the encyclopedia point of view, is an airport runway 03 magnetic direction.
It should be based on the 3rd entry point where the northern end of the reference magnetic meridian clockwise to the runway center line volume point of view, is an airport runway on the 3rd magnetic direction.
Should be to 03 entrance where the magnetic longitude at the northern end of the benchmark clockwise amount to the point of view of the runway center line, is an airport runway 03 magnetic direction.