| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024to•ka•mak (tō′kə mak′, tok′ə-),USA pronunciation n. [Physics.]- Physicsa type of experimental nuclear fusion reactor in which a plasma of atoms circulates in a toroidal tube and is confined to a narrow beam by an electromagnetic field.
- Russian tokamák, acronym from toroidál’naya kámera s aksiál’nym magnítnym pólem toroidal chamber with an axial magnetic field
- 1960–65
Collins Concise English Dictionary © HarperCollins Publishers:: tokamak /ˈtɒkəˌmæk/ n - a toroidal reactor used in thermonuclear experiments, in which a strong helical magnetic field keeps the plasma from contacting the external walls. The magnetic field is produced partly by current-carrying coils and partly by a large inductively driven current through the plasma
Etymology: 20th Century: from Russian to(roidál'naya) kám(era s) ak(siál'nym magnitnym pólem), toroidal chamber with magnetic field |