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composite piston
| ring
| composite piston | |
| auto. | 组合活塞; 复合材料活塞 |
| compr. | 组合活塞 |
| ring | |
| gen. | 戒指 |
| auto.ctrl. | 环状单元 |
| hydroel.st. | 环 |
| |||
| 组合活塞如多种冷却结构; 复合材料活塞 | |||
| 组合活塞 | |||
| 合成材料活塞 | |||
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composite piston-ring : 1 phrase in 1 subject |
| Shipbuilding | 1 |
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