The upper end and the lower end of a lifting screw are in a double-self-aligning hanging structure with a self-aligning roller stepbearing so that the stress state of the lifting screw is improved.
提升螺杆上、下端采用调心滚柱止推轴承双调心吊挂结构改善提升螺杆受力状态。
2
European efforts to encourage a speedier appreciation of the Chinese renminbi will step up a gear this month amid concern the euro is bearing the brunt of global macroeconomic adjustments.
由于担忧欧元在全球宏观经济调整中正首当其冲，本月欧洲方面鼓励人民币加速升值的努力将升级。
3
Polite - Another 25 per cent prefer to step aside. Interestingly, physical factors such as age, height and gender seemed to have no bearing on pavement etiquette.