问题
问答题 简答题
分析共析钢的结晶过程。
答案
参考答案：
合金在1点以上全部为液态，温度降低洗出奥氏体，温度低析出越来越多的奥氏体，倒2时全部为奥氏体。3点以前不变化，以后发生共析形成珠光体。后在降温不发生变化，故室温组织为珠光体珠光体。后在降温不发生变化，故室温组织为珠光体
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分析共析钢的结晶过程。
参考答案：
合金在1点以上全部为液态，温度降低洗出奥氏体，温度低析出越来越多的奥氏体，倒2时全部为奥氏体。3点以前不变化，以后发生共析形成珠光体。后在降温不发生变化，故室温组织为珠光体珠光体。后在降温不发生变化，故室温组织为珠光体
| 用所给的词填空完成短文。 | |
computer is very new. You can 4 _________ some flowers in the room. They are very nice. There 5 _______ some books on the desk. Kate often does her homework in the room. 6_______ father and mother are 7 _______ Her mother teaches Chinese and her father teaches English. Kate has a brother. 8______ name is Jack. 9 _______ isn't a student. 10 ______ is only 8 years old. Kate. |