equal altitudes造句

• The square table was used to measure the azimuth of celestial bodies by the equal altitude method and could also be used as protractor.
• Water does not flow as freely as in other parts of the country, because most of the water is on equal altitude, and in fact its circulation is carried out artificially.
• The resulting line of position ( " LOP " ) is a small segment of the circle of equal altitude, and is represented by a straight line perpendicular to the azimuth of the celestial body.
• Discovery of the circle of equal altitude-A New and Accurate Method of Finding a Ship's Position at Sea, by Projection on Mercator's Chart, Capt . Thomas H . Sumner, July 1843, Thomas Groom & Company of Boston
• One set of two wires indicates lines of equal altitude 36?and 59.5?and supplements the edge of the horizon plate ( altitude 0 ); they cross a vertical north-south wire to indicate the sun's meridian altitude at the equinoxes and solstices respectively.