[en] Intensity ratios of μ-mesonic x-rays in some heavy elements are discussed. Intensity ratios of the Ksub(αsub(1))/Ksub(αsub(2)) and Lsub(αsub(1))/Lsub(βsub(1)) lines have been calculated for 206Pb, 209Bi and 238U with relativistic wavefunctions and retardation effect. Though for a refined calculation, it is necessary to take into consideration several features that are peculiar to mesonic atoms, the present calculations have shown that the observed intensity ratios of mesonic x-rays are not anomalous. (author)