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valve lapping
| compound
| valve lap | |
| nautic. tech. | 阀接触面 |
| tech. | 阀余面 |
| compound | |
| agric. construct. | 复利计算 |
| hydroel.st. | 混合物 |
| met. | 抛光膏 |
| pest.contr. | 复合物 |
| sport. | 复合的 |
| tech. | 化合物 |
| |||
| 阀接触面 | |||
| 阀余面 | |||
| |||
| 气阀门研磨 | |||
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valve lapping : 9 phrases in 2 subjects |
| Automobiles | 4 |
| Technology | 5 |
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