fix on

We got a fix on the missile launching site.

我们确定了导弹发射场位置。

They fixed on him to speak on their behalf.

他们已经确定他作为代表发言。

His eyes are fixed on the red embers of the fire.

他眼睛余火。

The tail is fixed on the model plane with nails; it cannot come off.

模型飞机机尾是用钉子钉在飞机上, 不会掉下来。