The reference date is the date of tax payment.

其计入日期为缴纳税款日。

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All of these provide a reference date for the applications of vibration drilling with low frequency torsional vibration.

为低频扭振型的振动切削应用于生产实践提供了参考数据。

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The reference date for performance of the first surveillance audit is the last day of the audit for first certification.

首次监督审核的参考日期为首次认证审核的最后一天。

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And despite the occasional slip of a date reference from various executives, an official ship date still hasn't been set.

CNN: Some see ploy in Microsoft NT rename

We haven't seen any specific reference to the expiration date yet.

WHITEHOUSE: Via Conference Call

During exchanges on future Commons business on 30 June 2011, Tory MP Andrew Griffiths said he mistakenly submitted two invoices with the same supplier name, date, reference and amount, which were both processed by Ipsa.

BBC: Ipsa must 'raise its game', MPs told