The reference date is the date of tax payment.

其计入日期为缴纳税款日。

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The reference date is the date of service of the tax refund notice.

其减除日期为核定退税通知书送达日。

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

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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