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单词 elements
释义 elements
[`el·ǝ·mǝnts]
ASTRONOMY
A set of quantities specifying the orbit of a member of the solar system or of a binary star system, used to calculate the body's position at any time.
MECHANICS
The various features of a trajectory such as the angle of departure, maximum ordinate, angle of fall, and so on.
NAVIGATION
The specific values of the coordinates used to define the position of an aircraft or vessel.
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