衬垫密封表面 gasket sealing surface
初始密封表现 initial sealing performance ; Anfangsdichtheit
密封表现 Abdichtverhalten
壳体密封表面 housing sealing surface
水封式气表 [仪] water sealed gas meter
企业财务会计报表封面 FINANCIAL REPORT COVER
仪表封 TSS-Y ; Instrument seals
封条登记表 Seals issues records
硬表面封闭和提取 Hard Surface Blocking and Extraction
在去年12月发表的一封公开信中，数百名科学家、作家和学者向人类发出了警告：政策制定者和我们其他人必须公开应对全球崩溃的风险。
Hundreds of scientists, writers and academics sounded a warning to humanity in an open letter published last December: Policymakers and the rest of us must engage openly with the risk of global collapse.
本区的一位代表在一封电子邮件中如此说道,“这个系统提供了图书馆的设施，训练了那些协助者以及本区实体学校和虚拟学校之间的配合。”
A representative from the district said in an e-mail that the system “provided lab facilitators, training for those facilitators and coordination” between the district schools and the virtual school.
在星期天，各家报纸都对此大表欢迎，同时刊登了伊丽莎白给她母亲的一封信，信中谈到了白金汉宫遭到轰炸的当日她险些被殃及的情况。
On Sunday the papers rolled out the ghostly red carpet. They printed a letter from Elizabeth to her mother about the day that Buckingham Palace was bombed and she narrowly missed being splattered.
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