The conditions of cable tyre chain rollers were analyzed. In order to supply its working capability, the heat-treatment procedure is raised and optimized.

分析了缆式防滑链滚柱的工作条件，研究了为满足其工作性能要求应采取的热处理工艺，并对热处理工艺进行了优化。

youdao

"A huge log that took four people to lift has been put in the pen for scratching and clambering over, a buoy has been suspended on a chain from a metal chain and there is an old tyre to attack, " said a spokesperson for the Born Free Foundation.

BBC: RELATED BBC SITES