【中文版】

周转天数是指企业从取得存货开始，至消耗、销售为止所经历的天数。在制造业，周转天数通常用于衡量一个企业生产、销售产品所需要的时间。在其他行业，如零售业，周转天数则表示商品从进货到销售出去所需要的时间。

周转天数的计算可以帮助企业了解其运营效率，因为较短的周转天数意味着企业能够更快地将产品或服务转化为现金，降低库存持有成本，提高资金使用效率。此外，周转天数也是评估一个行业或企业健康状况的重要指标。

例如，一个制造业企业的周转天数可能包括原材料采购、生产、运输等环节的时间。而一个零售企业的周转天数则可能包括进货、销售、库存管理等环节的时间。为了缩短周转天数，企业通常需要优化供应链管理、改进生产流程、加强销售和市场推广等措施。

总之，周转天数是衡量企业运营效率和健康状况的重要指标，通过了解周转天数，企业可以更好地了解自己的运营状况，制定相应的战略和计划。

【英文版】

The meaning of days of turnover is the number of days it takes for a company to convert inventory into cash, from the time of obtaining inventory to the time of consumption or sale. In manufacturing industries, days of turnover are commonly used to measure the time it takes for a company to produce and sell products. In other industries such as retail, days of turnover represent the time it takes for goods to move from inventory to being sold.

The calculation of days of turnover can help companies understand their operational efficiency, as a shorter turnover time means that the company can convert products or services into cash more quickly, reduce inventory carrying costs, and improve capital usage efficiency. In addition, days of turnover is also an important indicator for assessing the health of an industry or company.

For example, the turnover time for a manufacturing enterprise may include the time for raw material procurement, production, transportation, and other links. The turnover time for a retail enterprise may include the time for stocking, selling, inventory management, and other links. To shorten the turnover time, companies typically need to optimize supply chain management, improve production processes, and enhance sales and marketing efforts.

In summary, days of turnover are important indicators for measuring the operational efficiency and health of a company. By understanding the days of turnover, companies can better understand their operational status and develop corresponding strategies and plans.