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counter-gate | |||
balance gate | |||
balanced door; counter gate | |||
balanced gate | |||
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counter-balanced gate |
平 衡 门 : 27 phrases in 12 subjects |
Architecture | 1 |
Aviation | 2 |
Business | 4 |
Economy | 1 |
Electronics | 1 |
General | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 2 |
Oil / petroleum | 1 |
Refrigeration | 1 |
Technology | 10 |
Water resources | 2 |