聲學.

聲學原理與噪音量測控制 = = Acoustic principle noise survery control/ by: (Language materials, printed)

聲學原理與噪音量測控制 / by: (Language materials, printed)

聲學原理與噪音量測控制 / by: (Language materials, printed)

探究物理 : = 解譯聲波密碼 / by: (Language materials, printed)

聲學.

通俗作品.