三角面-三角形相交检测  Triangle-triangle intersection test

三角形三面角反射器  triangular trihedral corner reflector

球面三角坐标  spherical triangular coordinates

三角形面积  triangle area

三角形三面反射器  triangular trihedral refelctor

三角形坐标  triangular coordinates

同底三角形面积比  triangle area ratio of the same hemline

坐标三角形  coordinate triangle; triangle of reference

坐标三面形  coordinate trihedral

四边形面积坐标  quadrilateral area coordinate method; quadrilateral area coordinate; quadrilateral area coordinates; quadrilateral area coordinate (QAC) method

[直角三角形的]斜边  Acquisition activation

不规则球面三角形  scalene spherical triangle

倒V形三角形布  Godet

等积三角形  equivalent triangles

等角三角形  equiangular triangle; equiangular triange

等角三角形命题  equiangular triangleproposition

等腰球面三角形  isosceles spherical triangle

等腰直角三角形  right angle isosceles; isosceles right triangle

等腰直角三角形波导  isosceles-right triangular waveguide