Valsts valodas centra izstrādātie transporta, infrastruktūras un sakaru termini

Konteksts: [..] In the right-hand parts of these equations the accelerations are determined using the gravitational constant ?, and the second zonal harmonic of the geopotential J20 which defines polar flattening of the earth, and accelerations due to luni-solar perturbation are taken into account. [..]
Avots: Annex 10 to the Convention on International Civil Aviation. Volume I. Radio navigation aids II.