Repeaters
n. 中继器（repeater的复数）
🗣️ 情景例句
Please excuse me for a minute.
失陪一会儿。
Business may be troublesome,but idleness is pernicious.
事业虽扰人，懒惰害更大。
but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.
但是早期记录地震波的仪器（测震仪）正是采用了这种思路。