period validation inspection 定期确认检验
The visa, which allows holders to return for stays of up to 30 days during the period of validation, is named hallyu , after the Korean pop culture wave.
该签证名为“韩流签证”，允许持有者在有效期内随时访问韩国，每次最长可停留30天。
There are many problems in traditional design method such as long period, structure redundancy, high cost and lack of validation etc.
传统的设计方法存在设计周期长、结构冗余、成本高、缺乏对结果的验证等诸多弊端。
The approach for designing mining machinery directly affects manufacturing style and period, employment course and disposal after in - validation of mining machinery.
矿山机械的设计方法将直接影响其制造加工方式、制造加工周期、使用过程和废弃后处置等环节。
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