产品分组的唯一标识符 Unique identifier for product groupings
将输入字段分组并为每个组提供一个惟一的标识符,这样就可以不依赖于各组在表单中顺序方便地选择分组。
Group the input fields and give each group a unique identifier to provide an easy way to filter all the input fields and not be dependent on the ordering of groups in the form.
符号是资源标识符(ID),由两部分组成:文本字符串(符号名)及其映射的整数值(符号值)。
A symbol is a resource identifier (id) that consists of two parts: a text string (symbol name) mapped to an integer value (symbol value).
UDI由两部分组成:强制性的器械标识符(DI)和受条件限制的生产标识符(PI)。
Two parts form the UDI: the mandatory device identifier (di) and the conditional production identifier (PI).
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