public addre system 中文意思是什麼
public addre system
解釋
有線廣播系統-
A well - organised edition of the olympics, the stockholm games saw the first use of electronic timing equipment, the photo finish and a public addre system
場內試驗性地安裝了電動計時器和終點攝影設備。時間精確到十分之一秒。
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