音響;喇叭,其構造原理? - Yahoo!奇摩知識+ 2005年3月3日 - 喇叭的構造很單純,藉著線圈吸放磁鐵,來推動鼓膜的前後移動。 ... 喇叭材質的構成很簡單,由外表看到只是一個木箱及幾個單體而已,通常會有
Monomers and Polymers - Science at a Distance All monomers have the capacity to form chemical bonds to at least two other ... by joining together monomers of the same chemical composition or structure.