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JIT production is a unique multi-variety, small batch, high quality and low consumption manufacturing mode gradually established by Toyota Motor Company of Japan according to its own characteristics. The basic principle of JIT production comes from the management mode of supermarket on demand, that is, the supplier delivers the goods to the required place at the specified time according to the requirements of order summons (Kanban). That is to say, only at the "required time, supply the required quality and quantity of products", specifically, the quality, quantity and time of the products processed or supplied in each stage are determined by the demand in the next stage. Therefore, JIT production refers to a kind of production mode in which machines and equipment with strong versatility and high degree of automation are adopted at all levels of production organization, aiming at continuously reducing costs, no waste products and zero inventory. In short, in the face of the changing market, we should provide customers with the required products and services at the lowest possible cost, in accordance with the required quantity and with perfect quality, so as to meet the needs of customers to the greatest extent.However, this magical energy usually lasts for a short time, disappears suddenly, and then the situation becomes even worse-this phenomenon called "flashback" usually indicates that death will come rather than go away.黄少爷若真要谢，不妨捐些财物或银两给医学院。我今天瞧他很不对劲呢。Twenty-eighth fire technical service institutions shall sign labor contracts with employees in accordance with the law to strengthen the management of their employees. Registered fire engineers are not allowed to practice in more than two social organizations at the same time.Run test code: