"104448185"^^ . . "tokamak"^^ . "0"^^ . "a doughnut-shaped chamber used in fusion research; a plasma is heated and confined in a magnetic bottle"@en-us . . . . . "a doughnut-shaped chamber used in fusion research; a plasma is heated and confined in a magnetic bottle"@en-us . "104276170"@en-us . "04448185-n"^^ . "103514261"@en-us . . . "0"^^ . "tokamak"@en-us . . .