referenon beam的用法和樣例：
例句
- The signal beam can be recreated by illuminating the medium with a beam identical to the original reference beam.
通過用和原始參考光相同的光束來照亮感光介質可以還原信號光。 - This "signal beam" then meets a separate reference beam, and where the two beams intersect they create an interference pattern in a light-sensitive medium.
然後，信號光會和另一獨立的參考光相遇，當兩個光束相交時，它們會在感光介質中製造一個干涉圖樣。
