Light of a particular colour can therefore be produced by exciting dots of a specific size.

因此，某种特定颜色的光就能通过刺激特定大小的量子点来产生。

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Each number does not necessarily correspond to a specific size of the aperture opening, but is a relative number.

每组数字并非是光圈打开大小的特定值，只是一个程度的相关体现。

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They are called quantum because it takes a packet of energy of a very specific size - a quantum - to create the states.

它们被称作量子因为物质只能接受一份份特定的能量——一个量子——来建立状态。

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Using ETFs, investors can now tap into gold bullion, currencies, commodities and a panoply of stocks of a specific size, style or sector.

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They are called quantum because it takes a packet of energy of a very specific size - a quantum - to create the states.

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To get the material to assemble properly, all of the molecules had to be a specific size--11 nanometers for the iron oxide particles, each of which is 60, 000 atoms across, and five nanometers across for the lead selenium quantum dots, each of which contains 3, 000 atoms.

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