| 单词 | longitudinal axis |
| 释义 | > as lemmaslongitudinal axis longitudinal axis n. the long axis of an object or structure (long axis n. at long adj.1 and n.1 Compounds 4a); spec. an axis running the length of a craft or vehicle through its centre of gravity (cf. roll axis n. at roll n.2 Compounds). [Compare post-classical Latin axis longitudinalis (1722 or earlier).] ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > qualities and parameters of aircraft > [noun] > axes of specific moments rolling axis1731 longitudinal axis1744 pitching axis1920 roll axis1945 pitch axis1952 yawing axis1953 yaw axis1959 the world > relative properties > number > geometry > geometric space > [noun] > division or marking of > axis > passing through foci principal axis1704 transverse axis1704 transverse1743 longitudinal axis1744 focal axis1794 major axis1840 1744 tr. G. van Swieten Comm. Aphorisms Boerhaave I. 82 The humours..do constantly endeavour to lengthen the sides of their canals in the direction of their longitudinal axis [L. secundum axim longitudinis]. 1796 R. H. Gower Treat. Theory & Pract. Seamanship (ed. 2) i. 6 A vessel easily inclines round her longitudinal axis. 1840 A. F. B. Creuze Treat. Theory & Pract. Naval Archit. 29/1 If the centres of gravity of these two solids should be situated in the same transverse vertical section, the inclination of the ship will be round her longitudinal axis. 1938 E. G. Richardson Physical Sci. Mod. Life i. 28 The section of an airship hull is fishlike and symmetrical about a longitudinal axis. 1986 J. F. Gracey Meat Hygiene (ed. 8) vii. 144/2 The ordinary bleeding knife severs blood vessels more rapidly if the blade is held at right angles to the direction of the vessels and longitudinal axis of the body. 2013 N.Y. Times 10 Mar. (Sports section) 12/3 The engine's tendency to rock end-to-end along its longitudinal axis as the crankshaft rotates. < as lemmas |
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