An object is conveyed by the hollow bridge and the two roller conveyers, which is beneficial to reducing the manpower requirement.

借由空桥和两滚子输送机来输送物体，有助于减低人力需求。

youdao

The invention relates to a device for filling crimping deformation of synthetic fiber ribbon; the device has two driven winding rollers; a roller gap is formed between the two winding rollers.

本发明涉及一种用于合成纤维条的填塞卷曲变形的装置，该装置具有两个被驱动的卷曲辊，在这两个卷曲辊之间形成有辊间隙。

youdao

The equipment is special equipment for processing the rabbet of two ends of roller steel tube.

该设备系加工拖辊钢管两端止口的专用设备。

youdao

Reading Magistrates' Court heard the 42-year-old man fell more than 3m (9ft) as he tried to remove two damaged roller-coaster trains from a track.

BBC: Legoland Windsor fined after worker fell from ride

Dozens dropped out, including two women from a local roller-derby team.

WSJ: An Icy Face-Off for Those Who Think Hockey Isn't Rough Enough

Rates have roller-coastered through two peaks and troughs in the past decade, and when the bottom of the current trough will be reached is anybody's guess.

ECONOMIST: Insurance