经过3年的研究，元素周期表上又增添了2种元素。

Two new elements have been added to the periodic table after a three-year review by the governing bodies of chemistry and physics.

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公式(1)，(2)在组合论中又增添新的计算公式。

Formula (1) and (2) provide new formula for calculation in combination theory.

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设计主旨是既抓住泰国传统建筑特色又增添现代元素。

The design brief was to capture the beauty of traditional Thai architecture while remaining contemporary.

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