Русско-английский научно-технический словарь
правильный
I
см. тж. справедлив; точный
• This nomenclature is the only proper nomenclature for these compounds.
• In this method, the proper (or correct) choice of solvents is important.
II
• Those ions form a regular crystalline lattice.
• A regular tetrahedron ...
• The earth is not a true sphere.