frictionless 

  1. 形容詞
無摩擦的, 無摩擦力的
光滑的
順利的
不費力的

    同義字詞
agreeable,amicable,compatible,congenial,harmonious,kindred,unanimous,united

例句

  1. A wheel has a frictionless axle.
  2. The switch hasn't been totally frictionless .
  3. A value of 0 means the object is frictionless .
  4. ANSWER: Idealize the hinge to be frictionless .
  5. The seals are of course frictionless and leakproof.