English to Russian Science Physics physics

The m on a material card corresponds to the material number on the cell card (see page 1–23). The consecutive pairs of entries on the material card consist of the identification number (ZAID) of the constituent element or nuclide followed by the atomic fraction (or weight fraction if entered as a
negative number) of that element or nuclide, until all the elements and nuclides needed to define the material have been listed.