在光记录技术中,指光道上两个凹槽之间的区域。在制作母盘时记录激光束不照射这些区域。参阅pit。 In optical recording, refers to the areas of the data tracks which are between the pits. These are typically the areas not touched by the recording laser beam during mastering.
但是能否以这样的方法把激光发展到可以在空,凤摧毁进攻的导弹呢? But can laser beams be developed in such a way to destroy attacking missiles in space?
医生做完了手术,但他的成功有赖于那些发明了新型激光手术刀的研究人员。 The doctor finished the operation, but his success depended on the backroom boys who had invented the new laser scalpel.
现在激光可以用来做手术。 Lasers can be used to perform operations nowadays.