雙擺

双摆
shuāngbǎi
double pendulum (math.)

CEDICT

math

Entry Composition

1 雙 shuāng
  1. two
  2. double
  3. pair
  4. both
  5. even (number)
2 擺 bǎi
  1. to arrange
  2. to exhibit
  3. to move to and fro
  4. a pendulum