什么是冲裁？
参考答案：
利用冲模板将板料的一部分与另一部分沿一定的封闭线条相互分离的冲压工序。
单词拼写（15分）
A、根据句意及首字母补全单词。
1. We are going to w_____ up the the Great Wall.
2. The radio says there will be h ______ rain and s______ winds
3. Homes will be warm in winter and we’ll be very c______.
4. My father is at work . He’s w______ .
5. We are getting ready for Spring F________.
6. You need to have a h________ . Your hair is too long .
井下怎样搬移局扇？
