双托 meaning in English

double bracket

He had pulled off his boots , and put on a pair of slippers
他把鞋脱了换上了一双托鞋。
Furthermore , it exp1ains the reason of tolerance and how to overcome and reduce tolerance thxough the ana1ysis of a tree of the tolerance source of the electronic belt weighing conveyor . giving the example of the tolerance analysis of the electronic belt weighing conveyor with double idlers and levers - it brings forwfard the measures to improt - e the precision and stabi1ity , and the ideas of sery ' iceability and maintenanceability . as a result , the proposal of the new type electronic belt weighing conveyor is put forward
接着，以电子皮带秤的误差源树展开分析，说明各误差产生的原因以及如何克服和减少误差的方法，再具体通过对本公司生产的双托辊双杠杆电子皮带秤进行误差分析，得出了提高电子皮带秤精度和长期稳定性的方法以及可维护性和可维修性的思想，进而提出了新型电子皮带秤的方案。