To do this research. 1. to create a boring device filling fish and fish scales, the number 1 and 2 in order to find the device performance boring filling fish and fish scales that can be used in shops, commercial fishermen. 3. to compare between this device to an existing device, or between workers with secure, convenient rapid research hypotheses are boring filling fish and fish scales that are created must meet certain criteria to evaluate the quality of expert fees.Chali does not enter less than 3.50 (good quality) and a sample of at least 5 people, 2 adults and mechanical side professional fish 3 people including 5 research tools include a standard query about the value (Rating Scale) Statistics used in the research include: average (x ̅) and standard deviation (S.D.)
การแปล กรุณารอสักครู่..