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| 滑动式阻风门挡板 | |||
| 滑动闸板; 调节砖; 焦炉内滑动调节砖 | |||
| 滑动调节风阀 | |||
| 活挡; 滑动调节器 | |||
| sliding damper: 3 phrases in 1 subject |
| Technology | 3 |
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