| 释义 |
▪ I. ‖ musa1|ˈmjuːzə|
Pl. musæ, musas.
[mod.L., from Arabic: see muse n.4]
In early use, the plantain or banana tree (see muse n.4). Now only Bot., a plant of the genus including the plantain tree (M. paradisiaca), the banana. Also attrib.
[1578: see muse n.4] 1832Macgillivray tr. Humboldt's Trav. (1836) III. 46 Groups of musae and dragon-trees. 1877P. L. Simmonds Trop. Agric. 455 Plants of the Musa tribe. Ibid. 466 Experience will soon determine which variety of Musa is most valuable for producing fibre. 1881Encycl. Brit. XII. 261/2 Many palms, some tree ferns, and the noble Musas..do fairly well.
▪ II. musa2 Radio.|ˈmjuːzə|
Also MUSA, Musa.
[Acronym: see quot. 1937.]
A radio aerial consisting of a number of rhombic elements in an end-fire array and giving a beam that is varied in direction by varying the phase relations between the elements.
1937Friis & Feldman in Bell System Techn. Jrnl. XVI. 340 The word MUSA is coined from the initial letters of ‘multiple unit steerable antenna’. 1940Ibid. XIX. 309 The principal parts of the two musa receivers occupy three rows of bays each about 25 feet long and 11½ feet high. 1946Nature 10 Aug. 190/1 Vertical angles were measured on transmissions from Rugby received at Holmdel with ‘Musa’ equipment. 1966McGraw-Hill Encycl. Sci. & Technol. I. 447/2 The multiple unit steerable antenna, abbreviated MUSA,..has a directional pattern 1° wide at 18 Mc. |