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| 圆辊〔定轮〕闸门 | |||
| 圆辊闸门; 滚轮闸门 | |||
| 滚轴门; 定轮闸门; 圆轮闸门; 滚筒门; 辊式闸门 | |||
| 辊门; 圆筒门; 辊式闸 | |||
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| 滚轴提升闸门 | |||
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roller gate : 35 phrases in 5 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 6 |
| Metallurgy | 2 |
| Technology | 20 |
| Water resources | 5 |
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