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design strength | |||
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specified concrete strength | |||
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design strength | |||
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design intensity |
设 计 强度 : 45 phrases in 9 subjects |
Aviation | 2 |
Bridge construction | 6 |
Business | 3 |
Drilling | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Hydroelectric power stations | 5 |
Oil / petroleum | 3 |
Technology | 23 |