| 释义 |
sectoral, a.|ˈsɛktərəl|
[f. sector n. + -al1.]
1. Pertaining to a sector.
a. (See sector n. 4.)
1778Hutton in Phil. Trans. LXVIII. 768 In this manner were computed all the differences which were necessary to be found, and placed in their proper squares formed by the meeting of the horizontal and vertical lines, or rings and sectoral spaces, in the following set of..tables. 1828Moore Pract. Navig. 19 The sectoral lines are like so many similar triangles, namely, that their corresponding sides are proportional.
b. (See sector n. 2 g.)
1969P. Anderson in Cockburn & Blackburn Student Power 223 There were various sectoral attacks and refutations of Marx by marginalist economists like Böhm-Bawerk. 1971Seminar Nov. 12/2 The second..category of English dailies in India is of the more ‘professional’ dailies... Lumped together, they certainly represent what may be called ‘a sectoral monopoly’. 1981Times 13 Aug. 16/4 In the sectoral breakdown, the statistics show that the banks have increased their support to manufacturing industry.
2. sectoral horn (Radio), a horn antenna having a rectangular cross-section and plane sides flared in one dimension only.
1939W. L. Barrow in Proc. IRE XXVII. 41 A horn whose cross section is rectangular and whose sides flare in one direction only..will be termed a sectoral horn. 1959K. Henney Radio Engin. Handbk. (ed. 5) xx. 88 The sectoral horn is flared in one dimension only, either in the plane parallel to the electric vector (E plane) or in the plane parallel to the magnetic vector (H plane). |