mutually perpendicular axes造句

Cubes of all sizes have three mutually perpendicular axes about which one or more layers can be rotated.
NOTE : The reference for measuring angles of input and output shafts of universal joint are mutually perpendicular axes.
Thermal ellipsoids can be defined by a tensor, a mathematical object which allows the definition of magnitude and orientation of vibration with respect to three mutually perpendicular axes.
It's difficult to find mutually perpendicular axes in a sentence. 用mutually perpendicular axes造句挺难的