| 单词 | magnetic field |
| 释义 | > as lemmasmagnetic field magnetic field n. a field (field n.1 15a) of the kind that is produced by a magnetic body (also by an electric current and a varying electric field) and acts on magnetic material. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrically induced magnetism > [noun] > field magnetic field1845 1845 M. Faraday Diary 10 Nov. (1933) IV. 331 Wrought with bodies between the great poles, i.e. in the magnetic field, as to their motions under the influence of magnetic force. 1906 A. Russell Treat. Theory Alternating Currents II. 191 Hutin and Leblanc provided the field magnets with ‘amortisseurs’, or ‘dampers’, which tend to prevent any relative change between the positions of the magnetic field due to the armature and the field due to the field magnets. 1940 M. Tornich Radius Action Aircraft 122 A magnetic compass is composed of magnetic needles which align themselves with the earth's magnetic field. 1953 S. W. Amos & D. C. Birkinshaw Television Engin. I. 250 In general there are two types of magnetic lenses, one employing a long magnetic field..and the other using a short magnetic field. 1996 Guardian 10 Sept. i. 9 (caption) The survey team criss-cross the site using a fluxgate gradiometer, a device highly sensitive to magnetic fields. < as lemmas |
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