uyky 發問時間: 社會與文化語言 · 1 0 年前

請高手幫我翻譯成順暢的句子 急用

In Figure 3a the DSC profile of a heating/cooling cycle performed in nitrogen at a rate of 10 °C/min is shown, while in Figure 3b is shown a heating/cooling/heating cycle performed in nitrogen at different rates: 10 °C/min heating and 1 °C/min cooling. The first information that can be drawn is that the upper threshold of the cooling rate that allows the material to recrystallize in the temperature range between ambient temperature and the temperature of the last endothermic transition is 10 °C/min. Actually, the cooling branch (2) of the DSC profile of Figure 3a is smooth until about 25 °C, indicating that no thermal transformation occurs. Below 25 °C a weak and incomplete exothermic signal appears. On the other hand, in the cooling branch (2) of Figure 3b a structured exothermic event at about 58 °C is present, producing certain evidence that a complete crystallization has occurred. In both parts a and b of Figure the branch of the first heating run (1) shows two distinct endothermic events, a smaller one around 62 °C and one at 70.17 °C. However, the profile of the second heating run (branch 3 in Figure 3b), performed after recrystallization, shows a single endothermic event at 69.57 °C. This suggests that the event at 62 °C is an irreversible process, while the thermal event at 70.17 °C identifies a reversible transition. At the second heating run this latter transition occurs at a slightly lower temperature and with a remarkably lower enthalpy (36.647 J/g with respect to 49.223 J/g to the first heating run). This means that recrystallization yields a less ordered material.

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  • 匿名使用者
    1 0 年前
    最佳解答

    在圖3a熱化的DSC外形冷卻的週期在氮氣執行了以10 °C/的率分鐘顯示, 當在圖3b顯示熱化時冷卻熱循環在氮氣執行了以不同的率:10 °C/極小的熱化和1 °C/極小冷卻。 可以拉長的第一信息是在溫度範圍允許材料重結晶在周圍溫度和最後收熱轉折的溫度之間冷卻的率的上部門限是10 °C/最少。實際上, 圖3a DSC外形的冷卻的分支(2)是光滑的直到大約25 °C, 表明熱量變革不發生。 在25 °C以下一個微弱和殘缺不全的放熱信號出現。 另一方面, 在冷卻的分(2)圖3b一個被構造的放熱事件在大約58 °C存在, 導致某一證據完全結晶發生了。 在分開a,并且圖b第一熱化奔跑(1)的分支顯示二個分明收熱事件,一更小的一大約62 °C和一个在70.17 °C。 然而, 第二熱化奔跑(分支3的外形在圖3b), 在再結晶以後執行, 顯示一個唯一收熱事件在69.57 °C。 這建議事件在62 °C是一個不可逆過程,當熱量事件在70.17 °C辨認反演性轉折時。 在第二熱化奔跑這後者轉折發生在輕微地低溫和以卓越地更低的焓(36.647 J/g關於49.223 J/g到第一熱化奔跑)。這意味著再結晶產生被命令的材料。

    因為我是用翻譯機,如果有不通順的地方請見諒!

    參考資料: 翻譯機
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