Box type main beam structure capable of reducing uplift pressure of plane emergency gate of water stopping of downstream positions
The invention discloses a box type main beam structure capable of reducing uplift pressure of a plane emergency gate of water stopping of downstream positions. The box type main beam structure comprises a box type main beam body (1) of the plane emergency gate; the box type main beam body is provide...
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| Format: | Patent |
| Sprache: | chi ; eng |
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