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汉语拼音：dìng xīn

内心安定；安心。

定心 [dìng xīn]

1. 使经纬仪垂直轴（仪器中心）与地面点位在同一铅垂线上之动作，称为定心。平板仪之定心，则系使平板上展绘之控制点与地面对应之点位在同一铅垂线上。定心可用垂球或光学垂准器为之。

• "It was a great goal just to settle us down, " added the Welshman. "We felt a little more comfortable after that. "

  “这是让我们定心的一个进球。”威尔士人补充说，“之后我们感觉轻松了很多。”

• The invention discloses a labyrinth compressor with a piston capable of automatically centering inside a cylinder.

  本发明公开了一种活塞在气缸中能够自动定心的迷宫压缩机。

• It might help to take up a meditation practice, Centering Prayer or some form of contemplation.

  这也许亦会对进行静坐修行，定心祷告，或者其它形式的冥想有所帮助。

• Listening to the music had a calming influence on her .

  听音乐对她起了一种定心安神的作用。

• Listening to music had a calming influence on her.

  听音乐对她起了定心安神的作用。

• and (4) the passing away of ease also, bringing about a state of pure self-possession and equanimity.

  定心也消逝了，致使一种纯粹的自我沉着和镇定的状态。

• Accordingly, actions for modification of the defective clamping and centering types of the hot-centering machine ar. . .

  因此针对现有热定心夹紧方式和定心方式的两大问题，提出了一些改进的措施。

• Straight-sided splines for cylindrical shafts with internal centering. Dimensions, tolerance and verification.

  内径定心平行边圆柱形花锥.尺寸，公差和检验

• Providing error analysis gist for three points preliminary centering and centering coordinate transformation.

  为工件三点初步定心误差分析及定心坐标变换提供依据。