The levels of carbon-14 isotopes rose sharply in the atmosphere after the nuclear weapons tests during the Cold War, and they provided a date mark in the cells. 研究者们观察死者脑细胞时发现这是显而易见的。冷战期间由于核武器实验,大气中的C-14含量迅猛增长。
-The release date is September 21, so mark your calendars! 发布日期是9月21日,在您的日历上做好标注吧!
Product date: see the mark on the seal. 生产日期:见封口处。
The coins, made by the Philadelphia Mint, were supposed to have the inscriptions "In God We Trust,"" E Pluribus Unum," the date and the mint mark around the edge. 由费城制造的硬币边缘本应印有“我们信奉上帝”、“合众为一”、日期和厂记。
Posh has decided on that date to mark the four years that her husband has been living on the country after opting to give birth via a C-section. 在大致清楚预产期后,夫妇二人可以选择某一天进行手术,并就此选择孩子的生日。
The first target date is a presidential speech in July to mark the first withdrawal of US troops from Afghanistan. 第一个目标日期是7月份纪念首批美军撤离阿富汗的总统演讲。
Print ( a design, the date, lettering, etc) on paper, cloth or some other surface; mark ( paper, etc) with a design, an official seal, etc 在纸、布或其他物体表面印上(图案、日期、文字等);在(纸等)的上面盖图案、公章等
He selected the date to mark the official time for celebrating Christ's birth. 他选择了这个日期作为庆祝耶稣出生的官方时间。
Although this date may not necessarily mark the end of the world, it is widely believed that it may indeed mark the end of the world "as we know it". 虽然这个日期可能不一定标志着世界的尽头,但人们普遍认为,这确实可能标志着世界的尽头“我们所知道的”。
Where it is decided that the opposition is not justified and the mark shall be registered, the date on which the applicant acquires the mark's exclusive right of use shall be counted from the day three months after it's preliminary publication. 经裁定异议不能成立而核准注册的,商标注册申请人取得商标专用权的时间自初审公告三个月期满之日起计算。
Another important element for its success is the Date mark stimulating effect which made Qing emperors pay more attention on emperor kiln products and made it had finer quality and technique. 而年款的激励效应则使清帝们更加认真地对待御窑产品,使其质量、工艺更加精细,也是清代御窑成就的重要因素。