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inclined disc
| butterfly valve
| inclined disc | |
| met. | 倾斜圆盘 |
| butterfly valve | |
| avia. | 蝶 阀; 蝶形活门 |
| dril. | 90°开闭的碟阀 |
| hydroel.st. | 蝴蝶阀; 蝴蝶阀 |
| mech. | 蝶形阀 |
| met. | 蝶阀; 节流阀; 节气门 |
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| 倾斜圆盘 | |||
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inclined disc butterfly valve : 1 phrase in 1 subject |
| Hydroelectric power stations | 1 |
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