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automatical gate; boomer | |||
flop gate | |||
automatic gate; balanced gate; self-shooter | |||
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automatic gate; automatical gate | |||
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boomer |
自 动 闸门 : 32 phrases in 6 subjects |
Electronics | 1 |
Hydraulics | 1 |
Hydroelectric power stations | 17 |
Technology | 11 |
Transport | 1 |
Water resources | 1 |