Scientists from the UK's Centre for Overseas Pest Research, evaluate mass trapping of the cotton leafworm.

来自英国海外害虫研究中心的科学家们对棉叶虫的大规模诱捕进行了评估。

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The black hole at the centre of the Milky Way is a behemoth with a mass four million times that of the Sun.

银河中心的黑洞是一个有着四百万倍太阳质量的庞然大物。

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He has already recruited Jun Qin of Baylor College of Medicine in Houston, Texas, as chief technical officer of the mass spectrometry centre.

德克·萨斯休斯顿贝勒医学院(Baylor College of Medicine)的秦军，被贺福初任命为质谱分析中心的首席技术主管。

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If they jumped vertically with no run up, their centre of mass would clear 3.5m compared to humans' 60cm.

BBC: Gibbons' extraordinary jumps 'down to technique'

By digitising the outline of each jumping gibbon frame by frame, they revealed how its centre of mass moved, and they calculated the forces needed to propel 6kg (a stone) of hairy ape through the air.

BBC: Gibbons' extraordinary jumps 'down to technique'

Several hundred Harland and Wolff workers have marched from their shipyard to the centre of Belfast for a mass meeting.

BBC: Shipyard workers hold mass meeting