Helical

(a.) Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring.

布里茨校对

• It consisted of a metallic cylinder having a helical indenting groove cut upon it from end to end. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• This has its cartridges arranged in a tube below and parallel with the barrel, and they are fed in a column to the rear by a helical spring as fast as they are used up at the breech. Edward W. Byrn. 十九世纪发明进展.

编辑:陌莉