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

The outside is packed tightly by protection chain, which guards against the tyre outside hurt effectively. In the inside, encrypt the reticulation range, the protection effects are more dependability.

全包型保护链解决了轮胎内外侧易受创伤的问题，轮胎外侧全部被保护链包严，有效防止了轮胎外侧的创伤，轮胎内侧加密了网状物的排列，防护效果更加可靠。

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