oscillation [ˌɑ:sɪˈleɪʃn]

例句:

• Each oscillation defines a Primary Interval of Time.
  来自SA
• I asked what the poles of the oscillation were.
  来自NEWYORKER
• Some oscillation of the fuselage had been noticed on early flights.
  在之前的几次飞行中，就已经察觉到机身有些摇晃。
  
• Its oscillation depends on the strength of the gravitational field.
  它的振动幅度取决于引力场的强度。
  
• He stayed...motionless save for the slow ruminative oscillation of his jaw.
  来自E. Reveley
• the oscillation of the compass needle
  罗盘指针的摆动