On 11 December 1951, Wilkins wrote an official letter to Crick requesting the Cambridge team stop working on DNA.
1951年12月11日，威尔金斯给克里克写了一份公函，要求剑桥小组停止研究DNA。
An official letter of designation on the letter-head of a recognized media organization signed by an editor will also be accepted.
也将接受使用公认的新闻媒体组织印有抬头的信笺并经编辑签署的正式委任书。
She received an official letter of explanation.
她收到了一封解释性的公函。
She received an official letter of explanation.
她收到一封官方解释函。
She received an official letter of explanation .
她收到了一封解释性的 公函 。
An official letter issued by MOTC or DGT to reject the application made by the applicant.
交通部或电信总局驳回申请人之申请案之公文。
We require official letter from your Company with seal and signature to send to us before we discuss about it.
在我们讨论前，需要贵公司寄送给我们带有贵公司签章和签名的正式信件。
If losing the passport outside of China, the Certificate of Loss issued by local police department and official letter issued by the Work Unit must be submitted;
在境外遗失的还需提交当地警察部门出具的遗失证明及单位公函；
Official letter of application of the unit;
提交单位申请公函；
Official letter from the host unit, stating the basic information of applicant , reasons for applying, items and period of applying, etc.
本市接待单位公函（须注明申请人基本情况、申请事由、申请期限）；
Official letter from the host unit, stating the basic information of applicant , reasons for applying, items and period of applying, etc.
本市接待单位公函（须注明申请人基本情况、申请事由、申请期限）；
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