conic surface造句

:: I assume that a conic surface is associated with some direction of the spread of pair of molecules ( the spread of 2 molecules occurs in opposite directions ).
A "'conic helix "'may be defined as a spiral on a conic surface, with the distance to the apex an exponential function of the angle indicating direction from the axis.
Then this conic surface is associated with little area ( in fact the section of surface and sphere ( circle ) must be in the middle of the area, but with infinitesimal values it's not important ).
It produces rectified imagery plans, true ortho-projections on planar, cylindric and conic surfaces, 3D photorealistic models, measurements from photography and mappings on a photographic base for uses in the cultural heritage sector, mainly conservation.
Every conic surface is rays that start at the apex and pass through a point of some fixed space curve . ( In some cases, however, the two nappes may intersect, or even coincide with the full surface . ) Sometimes the term " conical surface " is used to mean just one nappe.
It's difficult to find conic surface in a sentence. 用conic surface造句挺难的