The rope's construction is a key factor: When a rope is constructed directly from an underlying CharacterSequence or character array, it has a simple structure consisting of a single flat rope.
Therefore, deeply investigating and analyzing the characterof random noise in working area and its relation with working factor have practical implication to better guiding field data acquisition.
Therefore, study on the deformation and breakage law of upper and down floor of coal layer, the characterof formation, each fault factor are the key problem for prevention the water inrush.