(b) of materials in ponderable quantities which can be used in the pro duction of nuclear energy, such as lithium-6. lithium-7. nitrogen-15 and boron-10;
(b) d'ábhair i gcainniochtaí inmheáite is fèidir a úsáid chun fuinneamh núiclèach a tháirgeadh, mar litiam-6, litiam-7, nitrigin-15 agus bórón-10;