PERISCOPE is an instrument and mission concept with the goal of investigating and mapping lunar skylights from an orbiting platform using photon time-of-flight imaging.

PERISCOPE是一个仪器和任务概念，从一个轨道平台，使用光量子飞行时间成像法，（达到） 调查和测绘月球天窗目的。

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We Shared our mission and research with all levels of leaders from the very beginning — a concept I created using cups and saucers, called circular management.

从一开始，我们就与组织内的各级领导者分享了我们的使命和研究成果——这是我用杯子和碟子创造的一个概念，即循环管理。

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NATO is expected to unveil a new "strategic concept" to address global security concerns that have drastically shifted since the alliance last revised its mission 11 years ago.

北约预计会提出一个新的“战略概念”来对付全球性的安全担忧，这些担忧与北约11年前上一次修订它的使命时已经发生了巨大的变化。

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And a number of different estimates could be produced depending what software is used to model the satellite's decay, explained Dr Eves, who is lead mission concept engineer at Surrey Satellite Technology Limited (SSTL).

BBC: Nasa refines satellite crash time

Recognizing that a single mind no longer had the capacity to direct across the battlefield, they developed the concept of mission command.

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The second unfortunate consequence of the marketisation of higher education in America, this retreat from the concept of public mission is a potential loss of universities as centres of basic learning.

BBC: NEWS | UK | Education | Higher education 'market' warning