You must accept the offer within its validity period, otherwise we'll withdraw it.
贵方必须在报盘有效期内接受此盘，否则我们将撤盘。
The certificate is within its validity period.
凭证仍在有效期内。
The Type Certificate has a validity period of two years.
类型认证有效期为两年。
The Type Certificate has a validity period of two years.
类型认证有效期为两年。
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