可以使用不同的数据值表示相同的现实世界实体，如使用不同的编号表示产品，或使用不同的重量单位。
The same real-world entity might be represented with different data values, such as different part Numbers for a product or different weight measurements. Some of the most common problems include.
准备并保持一份完整的库存识别标签体系，标明编号，名称、发放单位、最小和最大库存。
Prepares and maintains a complete inventory identifying label system with number, name, issue unit, minimum and maximum stock.
各单位要维修计算机设备或投保保修计算机设备时，需填写费用审批书，注明设备编号。
If a repair or insurance is necessary, the organization should fill in an application with the serial number of the equipment labeled in the application.
深圳市的土地以宗地为基本单位统一编号，叫宗地号，简称地号。
The land of shenzhen city with ancestor the ground unit es number for main unit , call a ground date , abbreviation ground date.
文件号应以日历年为编号单位，并以连续阿拉伯数字作为序列号从小至大表明发文先后顺序。
The files shall be numbered by calendar year plus serial number in the natural sequence of Arabic numerals representing order of release.
文件号应以日历年为编号单位，并以连续阿拉伯数字作为序列号从小至大表明发文先后顺序。
The files shall be numbered by calendar year plus serial number in the natural sequence of Arabic numerals representing order of release.
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