flat sample造句

One solution is to use a very flat sample with only optical spatial fluctuation.
When a polished flat sample reveals traces of its microstructure, it is normal to capture the image using macrophotography.
In real cases, streaky RHEED patterns indicate a flat sample surface while the broadening of the streaks indicate small area of coherence on the surface.
In scanning tunneling microscopy, an atomically sharp metal tip is advanced towards the atomically flat sample surface until electron tunneling out of the atom and into the advancing tip becomes effective.
When the optical spot diameter " D ", for example " D " ~ 10 祄, at the surface of an elastically isotropic and flat sample is much greater than the initially heated depth, one can approximate the acoustic field propagating into the solid by a one-dimensional problem, provided that one does not work with strain propagation depths that are too large ( ~ " D " ?/ ? = Rayleigh length, where ? is the acoustic wavelength ).
It's difficult to find flat sample in a sentence. 用flat sample造句挺难的