...坡；混凝土板衬砌；混凝土等级；混凝土板厚；安全系数 [gap=990]Keyword：tunnel slope；concrete board liner；concrete grade；concrete board thickness；safety factor ...
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试验结果表明：(1)修补混凝土力学性能指标已超过C30混凝土等级的要求。
The testing result indicates: (1) the mechanics properties of the patched concrete has surpassed the rank of C30 concrete.
对已建厂房的复核结果反映出底层柱的轴压比、结构的混凝土等级等均能够满足要求，但抗弯承载力不足。
The segments of the plant which have been constructed are calculated, which reflects that axial compression ratio of column and concrete strength is in accordance with the code.
在检测的混凝土强度等级较低时，应考虑到这种差异。
It should be considered in examining the concrete of low strength grades.
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