Seismometers That sounds a silly suggestion, but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.

 
  • 这听起来似乎是一种愚蠢的想法,但是早期记录地震波的仪器(测震仪)正是采用了这种思路。
今日热词
目录 附录 查词历史