在开尔文温标中，没有负的温度，数字后面没有表示度的圆圈符号，如水的冰点是273k，而不是273。
In the Kelvin scale, which has no negative figures, the symbol for degrees is not used after the number. So the freezing point of water is 273k, not 273 ~ K.
百事公司董事长英德拉·努伊表示，提升公司产品健康度的这项计划对公司的发展至关重要。
Indra Nooyi, PepsiCo chairman, said the plan to make its products healthier was important for the company's growth.
这个孔隙空间被称为孔隙度，用岩石总体积的百分比表示。
This pore space is known as porosity and is expressed as a percentage of the total rock volume.
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