To study the characteristics of your trap storage hole in each pierced and statistics of various styles of trap performance can be used as a basis to consider putting a hole in the future.
To study the nature of the trap in each drill hole and collected statistics of the powerful characteristics of the trap. To be essential in determining the next hole.
To study the characteristics of trap on each hole drilling and collect statistics of the effective trap of various style. To can be used as data to consider putting holes in the future.