The cage ears for hoisting in mine will increase mining costs because of wearing heavily.
2
锡青铜是矿井中作为罐笼罐耳内衬套的主要材料，使用时磨损严重。
The tin bronze is the main lining materials as tank cage and ear in mine, wears seriously in application.
3
为了解决罐耳磨损严重问题，研究稀土铈的加入量对罐耳组织和力学性能的影响。
To solve the problem of severe wear of cage ears, the influence of the amount of rare earth-Ce on microstructure and mechanical properties of cage ears was studied.
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