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单词 let fall
释义

let fall

Geometry Draw (a perpendicular) from an outside point to a line.On the tangent PR produced let fall the perpendicular SY....
  • Let ABC be any triangle, and the angle at B one of its acute angles, and upon BC, one of the sides containing it, let fall the perpendicular.
  • Their effects must be estimated by the length of perpendiculars let fall upon the lines of direction in a similar manner.
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更新时间：2025/7/28 9:09:58