All the three front-sides of nfc with available simplexes can be coupled to the front-sides of other three nfc, dense the free inner space of the ring,
the complexes of quadratic degrees filling it mutually (fig. 7.17 and 7.18). The couplings are possible only through the concatenation of the participant
configurations. In the fig. 7.19 it is added, for the four chained configurations another one - an example of an open articulation.
Comparing this configuration (fig. 7.19) with fnc (fig. 7.14), points out that fnc (fig. 7.19), which also arrived the final stage, indicates transparency,
points out the alternations of filled and empty, developing particularly tentacular, as an open structure, available to three - dimension expansion.
