... scintillation 闪烁 scissors stairs 剪式楼梯 scleroscope hardness 回跳硬度 ...
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...剪刀楼梯;避难层; [gap=130]ds】: code for fire protection design of tall building, residence, tall building, scissors stairs, refuge floor ...
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symmetrical type scissors stairs 对称型剪式楼梯
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