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单词 absolute altitude
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absolute altitude
absolute altitude n. [after French hauteur absolue (1797 in the passage translated in quot. 1798, or earlier)] altitude relative to sea level or some other reference level; (Aeronautics) the altitude of an aircraft above the land or sea over which it is flying; cf. absolute height n.
ΘΚΠ
the world > space > relative position > high position > [noun] > height above the ground or sea level > of an aircraft
absolute altitude1921
angel1943
1798 tr. J. F. G. de la Pérouse Voy. round World II. xx. 468 We took advantage of it in order to take the absolute altitudes of the sun, for the purpose of ascertaining the hour.
1828 Edinb. Jrnl. Sci. 9 193 The measurements of the absolute altitude of the different parts of the mountain at successive periods are of great interest.
1921 Syracuse (N.Y.) Herald 2 Oct. 4/4 At the same time onlookers knew that Lieutenant Macready would try for the absolute altitude, as he had been trying for a year.
1992 Pilot (BNC) June 64 Pyxis's receiver..provides..relative altitude from starting point and absolute altitude based on local coordinates.
2004 I. N. Demidov et al. in J. Ehlers & P. L. Gibbard Quaternary Glaciations I. 330/2 In the southern part of the Vaga basin, the absolute altitudes of terraces vary from 130 to 75 m.
extracted from absoluteadj.adv.n.
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