aac

abbr. 自動振幅控制（automatic ampltiude control）

學術名詞

• 先進音訊編碼：新聞傳播學
• 對空普通彈：海事

英文釋義

1. a lightweight, precast, concrete building material invented in the mid-1920s that simultaneously provides structure, insulation, and fire- and mold-resistance.