2012-10-07
oblique 倾斜
- Sloping or joining something at an angle that is not a right angle.
- Neither perpendicular nor parallel to another line or plane.
oblong 长方形的,矩形的;椭圆形的
Having the shape of or resembling a rectangle or ellipse.
obtuse angle 钝角
An angle greater than 90° and less than 180°.
obtuse triangle 钝角三角形
A triangle with one obtuse angle.
octagon 八边形
A polygon with eight sides and eight angles.
octahedron 八面体
A polyhedron with eight faces.
odd 奇数的
- Not divisible by two.
- Changing sign but not absolute value when the sign of the independent variable is changed, as in y = x3.
odd number 奇数
Designating an integer not divisible by two, such as 1, 3, and 5.
1 2
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