In this paper , carbon aerogels are obtained through ordinary pressure drying ; their structural properties are investigated.

在常压条件下通过溶胶- 凝胶法 和碳化、活化工艺制备碳气凝胶材料.

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The freezing temperature, or freezing point, is the temperature at which water freezes under ordinary pressure.

结冰温度即冰点, 是水在常压下结冰时的温度.

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