The application of statistical principles and techniques in all stages ofproduction directed toward the economic manufacture of a product that is useful and has a market.
把统计的原则与技术应用在生产的各个阶段，能直接以经济方式制造出有用且有市场的产品。
2
In the design style, it is necessary be recognized by the consumers and also be able to meet the production quantity ofeconomicprinciples.