预镀
参考答案:
预镀处理通常是采用化学浸铜的方法使制件表面预镀上一层较薄的铜层,铜层的厚度不作要求,也可不进行预镀处理。是否进行预镀处理,由供需双方协商决定。
预镀
参考答案:
预镀处理通常是采用化学浸铜的方法使制件表面预镀上一层较薄的铜层,铜层的厚度不作要求,也可不进行预镀处理。是否进行预镀处理,由供需双方协商决定。
Read and complete. | |
Lisa has a busy week. She goes to music class on Monday. On Tuesday she goes to the library. On Thursday she has to go to buy some food and drinks because on Friday she has a party at her house. She goes to visit her parents on Saturday. On Sunday she doesn't go anywhere. She stays at home and enjoys her favourite TV show. | |
|