frictionless

英[f'rɪkʃnles] 美[f'rɪkʃnles]
  • adj.无摩擦的;光滑的
  • Fri abbr.星期五(=Friday)
  • Fria n.弗里亚(在几内亚;西经13º38'北纬10º27')
  • Friaa 弗里阿
  • friabilator 脆度测定器,剥落仪,磨损仪
  • friability n.脆弱;易碎性
Adjective:
  1. lacking all friction;

    "a perpetual motion machine would have to be frictionless"

    用作形容词 (adj.)
    1. Pulley bearings are frictionless.
      滑轮轴承是无摩擦的。