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| 板阀; 板闸阀; 板式阀; 扁平阀; 圆盘阀; 扁平阀圆盘阀; 扁平活门; 圆盘活门 | |||
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плоский клапан : 9 phrases in 4 subjects |
| General | 5 |
| Hydraulics | 1 |
| Oilfields | 1 |
| Technology | 2 |
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