为减少库存，增加经济效益，实现我厂年度方针目标年底备件库存额下降３０％，１９９８年１月２６日建立了精尾厂机动科ＱＣ小组（详见表１）。１目标设定依据厂内目标设定，从１９９７年１２月的２３７．９万元，到１９９８年１２月库存量应下降３０％，库存额为１６６万元。? In order to reduce inventory and increase economic efficiency, we achieved a 30% reduction in spare parts inventory at the end of our factory’s annual policy target. On January 26, 1998, we established the QC team of mobile division of Jingwei plant (see Table 1 for details). 1 The target setting is based on the factory target setting, from 2.379 million yuan in December 1997 to December 1998 inventory should be reduced by 30%, and the inventory amount is 1.66 million yuan. ?