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dihedral

a. 有两个平面的
n. 两面角

有两个平面的两面角

The Collaborative International Dictionary of English v.0.48 (gcide)

Dihedral \Di*he"dral\, a. [Gr. di- = di`s- twice ? a seat,
bottom, base, fr. ? to sit. Cf. {Diedral}.]
1. Having two plane faces; as, the dihedral summit of a
crystal.
[1913 Webster]

2. Of a kite or an a["e]roplane, having wings that make with
one another a dihedral angle, esp. when the angle between
the upper sides is less than 180[deg].
[Webster 1913 Suppl.]

3. (A["e]ronautics) Of wing pairs, inclined at an upward
angle to each other.
[Webster 1913 Suppl.]

{Dihedral angle}, the angular space contained between planes
which intersect. It is measured by the angle made by any
two lines at right angles to the two planes.
[1913 Webster]

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Dihedral (aeronautics) - Wikipedia
Dihedral angle is the upward angle from horizontal of the wings of a fixed-wing aircraft, or of any paired nominally-horizontal surfaces on any aircraft The term can also apply to the wings of a bird Dihedral angle is also used in some types of kites such as box kites
How Dihedral Keeps Your Wings Level - Boldmethod
Dihedral is the upward angle of an aircraft's wings, which increases lateral stability in a bank by causing the lower wing to fly at a higher angle of attack than the higher wing
What Is Dihedral and Why It Keeps Airplanes Stable
Dihedral is the slight upward angle of an airplane’s wings when viewed from the front It is a common design feature used to make airplanes more stable in flight
DIHEDRAL Definition Meaning - Merriam-Webster
dihedral noun di· he· dral (ˌ)dī-ˈhē-drəl 1 : dihedral angle 2 : the angle between an aircraft supporting surface (such as a wing) and a horizontal transverse line
DIHEDRAL definition in American English | Collins English Dictionary
4 senses: 1 having or formed by two intersecting planes; two-sided 2 Also called: dihedron, dihedral angle the figure formed Click for more definitions
What Is a Dihedral Angle? Geometry, Chemistry Flight
A dihedral angle is the angle formed between two flat planes that share a common edge If you imagine opening a book partway, the angle between the two pages, measured along the spine, is a dihedral angle The concept shows up across geometry, chemistry, and engineering, and the specific meaning shifts slightly depending on the field
Dihedral Angle Calculator - Math is Fun
Dihedral Angle Calculator A dihedral angle is the angle between two planes To calculate this angle, you can follow these steps: 1 Calculate the equation for each plane It will be in the form: 2 Then, knowing the equation of the two planes, you can calculate the dihedral angle: I made this calculator to calculate the equation of each planes from three points, and then the angle between them
Dihedral Angle -- from Wolfram MathWorld
The dihedral angle is therefore trivial to compute via equation (3) if the two planes are specified in Hessian normal form
Dihedral Angle | Definition, Calculation Examples - Study. com
A dihedral angle is an angle between two planes The word dihedral means that something has two planes, and an example is an angle between the ceiling and wall of a room
Dihedral Angle (Geometry) Explained Simply - Andrea Minini
The Difference Between a Dihedral and a Polyhedron: A dihedral is a space defined by two half-planes that share a line and form an angle A polyhedron, on the other hand, is a solid figure bounded by flat surfaces called "faces "

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