The analyst should take into consideration that in an uptrend market, the low of the second wave never goes below the beginning of the first wave. The third wave is never the shortest. The forth wave does not penetrate the price range of a first wave. Market movements are essentially the same but they may differ in the size or duration. Large scale movements incorporate smaller scale subdivisions which are similar to them in their «fractal» geometry. One of the three impulse subwaves (W-1, W-3, W-5) can have extensions i.e. elongated movements. These subdivisions increase the number of waves to nine for the main sequence. The increased number of movements does not change the technical significance of price pattern.
e to penetrate — проникать
to incorporate — объединять
ae fractal "geometry" — «геометрия частей» фрактальная геометрия