by the sugar undertakings, under the supervision of an expert recognised by the Member State concerned, provided the beet seller defrays the costs thereof.
ag na gnóthais siúcra, faoi mhaoirsiú saineolaí atá aitheanta ag an mBallstát lena mbaineann, ar an gcoinníoll go n-íocann an díoltóir biatais na costais maidir leis sin.