Complex sentence: If the method is written down and given to the workers they can learn it and apply it in their work area.Third principle is that according to your necessities, choose the best workers that have the abilities and that can be trained to follow the standard rules.
Split into simpler sentences: If the method is written down and given to the workers they can learn it and apply it in their work area. According to your necessities choose the best workers that have the abilities and that can be trained to follow the standard rules.