“equal altitudes”的概念、定义、翻译、参考文献-科学参考

In celestial navigation, two altitudes numerically the same; the expression applies particularly to the now obsolescent practice of determining the instant of local apparent noon by observing the altitude of the sun a short time before it reaches the meridian and again at the same altitude after transit; the time of local apparent noon is midway between the times of the two observations; however the second observation must be corrected for the run of the ship which took place between the times of the two readings. Also known as double altitudes.

单词	equal altitudes
释义	equal altitudes [`ē·kwǝl `al·tǝ´tüdz] ^NAVIGATION In celestial navigation, two altitudes numerically the same; the expression applies particularly to the now obsolescent practice of determining the instant of local apparent noon by observing the altitude of the sun a short time before it reaches the meridian and again at the same altitude after transit; the time of local apparent noon is midway between the times of the two observations; however the second observation must be corrected for the run of the ship which took place between the times of the two readings. Also known as double altitudes.
随便看	burning oil burning point burning quality burning-quality index burning rate burning-rate constant burning train burning velocity burnish meter run meter sensitivity meter sizing factor meter stop meter-ton-second system meter-type relay meter wheel metestrus methacrolein microwave amplification by stimulated emission of radiation microwave amplifier microwave antenna microwave attenuator microwave background microwave bridge microwave cavity