the difference in the cylinder capacity of the power unit (in the case of a combustion unit) between the lowest value and the highest value does not exceed 30 % of the lowest value;
nach bhfuil an difríocht ó thaobh thoilleadh sorcóra an aonaid chumhachta (i gcás aonaid dócháin) idir an luach is ísle agus an luach is airde níos mó ná 30 % den luach is ísle;