broad-billed roller meaning in Chinese

三宝鸟

This research was also supposed to provide a valuable reference for the construction of 500kv eastern hangzhou transformer substation project . to guarantee the rationality of the torsion and bending load application , a set of experimental equipments was transformed from a traditional one by exerting tangential force on the brim of the fan board and conducting broad - billed roller application . in the actually fulfilled experiments on the capabilities of the members under different ratios of torsion and bending , the equipments proved to be well qualified in load applying to large - tonnage members
试验中，为保证扭转及弯矩荷载施加的合理性，在浙江大学工程结构试验室原有的加载设备的基础上，分别采用在扇形板边缘施加切向力和宽轴承滚轴加载的方法，改造并调试出一套可专门用于大吨位构件施加扭转荷载及组合作用的试验设备，并利用这套设备进行了离心钢管混凝土构件在不同弯扭比的组合作用下的试验研究。