shaft stool是什么意思

用法例句

An analysis of causes for defects of roller bearing and treatment measures;

京九线孙口黄河特大桥钢梁辊轴支座病害原因分析及整治措施

Defect occurs in succession due to the inconsistent declining angles of roller bearings for long, medium span steel bridge, the defect is analyzed according to the fricton and wear and tear theory.

大、中跨度钢桥辊轴支座陆续出现辊轴倾角不一致的病害 ,对于病害原因从摩擦和磨损理论进行分析。