pull shaft
... 上拉轴 pull shaft 股骨上髁轴 STEA 上悬轴 KGS ...
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SL系列上罗拉轴承 SL series top roller bearings ; top roller bearing SL series
上罗拉轴承 top roller bearing
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在此基础上，分析了双轴拉-压极限强度随冻融循环次数的变化规律，并在主应力空间和八面体应力空间建立了同时考虑冻融循环次数和拉压比的破坏准则。
On this basis, the failure criterion of concrete simultaneously considering the freeze-thaw cycle and tension-compression ratio in principle stress space and octahedral space is established.
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