angle of elevation
The angle formed by the line of sight and the horizontal plane for an object above the horizontal.
plural of black rat
(snooker, pool) To pot the cue ball accidentally after hitting the object ball.
(physics) A unit of energy equal to one billionth of an electronvolt, symbol neV
塔の頂上に対する仰角を測定することで、測量士はその高さを計算した。
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