spark recorder

例句：

1. 1. The spark recorder is a device that records electrical sparks.
   火花记录器是一种记录电火花的设备。
2. 2. The spark recorder was used to study the behavior of lightning.
   火花记录器被用来研究闪电的行为。
3. 3. The spark recorder helped scientists to understand the properties of plasma.
   火花记录器帮助科学家了解等离子体的性质。