二、礦物磁力分離的工具 1.永久磁鉄永久磁鉄我們已經很熟習了,常見的永久磁鉄一般都是馬蹄形;我們地質工作者在野外工作,或是在室内作研究工作時,都要用到它;並且在日常生活中,亦經常和它打交道,比如我們常用的電話机、電鈴、收音机和擴音器的喇叭(指永磁喇叭)等等,裏面都擺着一個永久磁鉄,而且起着重要的 Second, the separation of mineral magnetic tools 1. Permanent magnet 鉄 permanent magnet 鉄 We have become familiar with, the common permanent magnet 鉄 are generally horseshoe-shaped; geologist in the field when we work in the field or for research work, we must Use it; and in daily life, and often deal with it, such as our commonly used telephone, bells, radios and loudspeakers speakers (referring to the permanent magnet speakers), etc., which are placed in a permanent magnet, And it plays an important role