magneto bell

magneto bell的基本解释

-

磁石电铃, 磁石式电铃, 磁铁电铃, 永磁电铃

与magneto bell相关的网络例句 [注：此内容来源于网络，仅供参考]

Bell spent his evenings experimenting with tuning forks (fork-shaped pieces of metal which always produce the same musical note and which are used to tune pianos), metal springs, and magneto batteries.

一个又一个夜晚，贝尔用调音叉(一种制成叉子形状的总是发出同一种音调的金属制品，常用来给钢琴调音)、金属弹簧、磁电机电池来做实验。