聲阻抗比差 的英文怎麼說

中文拼音 [shēngkàngchā]
聲阻抗比差 英文
acoustic contrast
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : Ⅰ動詞1 (抵抗; 抵擋) resist; combat; fight 2 (拒絕; 抗拒) refuse; defy 3 (對等) contend with...
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • : 差Ⅰ名詞1 (不相同; 不相合) difference; dissimilarity 2 (差錯) mistake 3 [數學] (差數) differ...
  • 阻抗 : [電學] impedance
  1. But to circular plate with large surface area, the vibrate modes generated is often so high that there is reverse phases existing, which result in a decrease in radiation impedance, electric - acoustic efficiency and the electric power, as well as poor directivity

    然而對于輻射面積較大的彎曲振動圓盤,一般激勵的振動階數較高,因此存在彎曲振動的反相區,導致換能器的輻射下降,電效率和功率降低以及指向性變等問題。
  2. The analytical mode is based on the theory of sound propagation in layered media. the concept of equivalent parameters is established. the absorption of sound energy by damping layer ' s is represented by use of complex sound impedance

    解析模型以分層介質中的波動理論為基礎,建立了等效參數的概念,並運用的復數表示法把尼層對介質層能吸收的影響都考慮進去,通過較敷設消覆蓋層前後多層傳遞損失的異來獲得消層的效率。
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