相圖是用以描述一個材料系統在不同溫度、壓力和組成下存在什麼相的圖形表示。
A.正確
B.錯誤
正確答案：正確
題目：相圖是用以描述一個材料系統在不同溫度、壓力和組成下存在什麼相的圖形表示。
關鍵字：智慧樹
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