问题
填空题
衡量切削变形的方法有（）两种，当切削速度提高时，切削变形（）。
答案
参考答案：变形系数与滑移系数，减少
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衡量切削变形的方法有（）两种，当切削速度提高时，切削变形（）。
参考答案：变形系数与滑移系数，减少
| 情景交际。 | |
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| A. Mom, I want to learn how to make a turkey sandwich. Can you teach me? B. Sure. (1)_______ A. How much butter? B. Oh, about a spoon. A. OK. (2)_______ B. Some tomatoes. A. (3)_______ B. Well, one is enough. Put the tomato on the bread. Then cut up an onion, too A. Sounds good. B. Now add some turkey slices( 薄片) A.OK. (4) _______ B. Not quite. Put some relish (佐料) on the turkey. A. All right. B. Finally, put another piece of bread on the top. A. Wow! (5)_______ B. You can taste it now. |