问题
问答题 简答题
磨料磨损机理研究主要体现在三方面
答案
参考答案：
一是零件材料的磨损机理，
二是磨料自己的磨损机理，
三是研究材料和磨料间的相互作用
搜题请搜索小程序“爱下问搜题”
磨料磨损机理研究主要体现在三方面
参考答案：
一是零件材料的磨损机理，
二是磨料自己的磨损机理，
三是研究材料和磨料间的相互作用
| 完成句子。 | |
1. —What's the of your father? —1.70m more or less. 2. The little girl couldn't find her mother and cried outside the supermarket. 3. It's to shout at your parents. 4. When a giant panda is six months old, it starts eating bamboo shoots and . 5. He is as tall as his brother, but his brother is much . |