article_snippet.sent: Two laser trackers and nine jacks are positioned on a single surface, to make sure all movement is relative, and Two laser trackers and nine jacks control the alignment of the barges by cancelling out the subtle effects of the moon and the tides the moon creates.
article_snippet.sent: Two laser trackers and nine jacks are positioned on a single surface, to make sure all movement is relative, and Two laser trackers and nine jacks control the alignment of the barges by cancelling out the subtle effects of the moon and tide. '
article_snippet.sent: Two laser trackers and nine jacks are positioned on a single surface, to make sure all movement is relative, and Two laser trackers and nine jacks control the alignment of the barges by cancelling out subtle effects of the moon and tide .