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麻衣总是将各种物品缩减控制在最低需要程度。麻衣贯彻着“扔”之道，而她的妈妈和外婆却觉得，扔了可惜。东日本大地震后，经历了与家人分离的她重新开始审视与这些物品的生活...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.启明上，当初涌进来的作者，已经很少还在写作了，连续一周一直都更新六千字以上的人，估计只有河中的流水这个签约作者了，毕竟他立志要写出十亿字。退休教师齐大妈丧偶多年，她的所有心思全用在外孙女婷婷身上。不料女儿女婿突然离婚，而能歌善舞的外孙女婷婷也因意外失聪。女儿离家出走，女婿再婚，面对种种困境，齐大妈义无反顾肩负起照顾婷婷的重担。婷婷的父亲赢得抚养权，爷爷奶奶也从乡下赶来。齐大妈不舍孩子，只好隐瞒身份以保姆的身份进入前女婿家中。齐大妈忍辱负重一切为了婷婷，没想到却遭到所有人的误解；好不容易以自己的诚心和坚韧赢得了大家的理解，却突然病倒，医生诊断她患上老年痴呆。齐大妈并没有就此倒下，她在剩下有限的时间里帮助婷婷彻底摆脱失聪留下的阴影，同时也帮助婷婷重建与父母和爷爷奶奶的亲情 。