问题
填空题
联合型等离子弧主要用于微束等离子弧焊和（）等。
答案
参考答案：粉末堆焊
搜题请搜索小程序“爱下问搜题”
联合型等离子弧主要用于微束等离子弧焊和（）等。
参考答案：粉末堆焊
| 补全对话。 | |
| Dong: Alice, what were you doing when the fire started? Alice: 1. Dong: Did you smell smoke? Alice: 2. Dong: Where was she? Alice: She was playing in the gym. Dong: 3. Alice: He was eating lunch in the cafeteria. 4. Dong: When the fire started, I was talking on the telephone. Alice: What did you do? Dong: 5. Alice: Good for you!
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