1. 在光記錄技術(shù)中，指光道上兩個凹槽之間的區(qū)域。在制作母盤時記錄激光束不照射這些區(qū)域。參閱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.
2. 但是能否以這樣的方法把激光發(fā)展到可以在空，鳳摧毀進攻的導彈呢？
   But can laser beams be developed in such a way to destroy attacking missiles in space?
3. 醫(yī)生做完了手術(shù)，但他的成功有賴于那些發(fā)明了新型激光手術(shù)刀的研究人員。
   The doctor finished the operation, but his success depended on the backroom boys who had invented the new laser scalpel.
4. 現(xiàn)在激光可以用來做手術(shù)。
   Lasers can be used to perform operations nowadays.

光的英語翻譯：