问题
问答题 简答题
已知在型钢轧机上热轧，轧辊线速度〈2.5m/s，轧辊工作直径为600mm，咬入角为23度，求允许最大压下量？（cos23=0.92）
答案
参考答案：
Δh=D（1－cosα）=600×（1－cos23）=600×（1－0.92）=48mm
答：允许最大压下量48mm。
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已知在型钢轧机上热轧，轧辊线速度〈2.5m/s，轧辊工作直径为600mm，咬入角为23度，求允许最大压下量？（cos23=0.92）
参考答案：
Δh=D（1－cosα）=600×（1－cos23）=600×（1－0.92）=48mm
答：允许最大压下量48mm。
| 选词填空。 | |
 Tim and his father are at the zoo. They are looking at the animals. There are small animals. There are 1.________, 2._________ and rabbits. Tim likes them a lot. There are some big animals, too. There are 3._______, giraffes and 4.________ Tim's favourite animal is panda. But there aren't pandas in the zoo. |