;******英文受信練習*******
;**Constitution of the I.T.U.*****
;****chapter 7 , article 44 , 196-2
hr hr [bt] in using frequency bands for radio services, member states shall bear in mind that radio frequencies and any associated orbits, including the geostationary-satellite orbit, are limited natural resources and that they must be used rationally, efficiently and economically, in conformity with the provisions of the radio regulations, so that countries or groups of countries may have equitable access to those orbits and frequencies, taking into account the special needs of the developing countries and the geographical situation of particular countries. [ar]
