金箔的时候，计数率就变成零了，如果他把金换成比如说铁，他们还尝试了铂，还有一系列其他的箔片，他发现计数率还是每分钟。

If he switched from gold to let's say iron, he also tried platinum, a number of different foils, he found that they count rate it still was 20 alpha particles per minute.

youdao

金箔的时候，计数率就变成零了，如果他把金换成比如说铁，他们还尝试了铂，还有一系列其他的箔片，他发现计数率还是每分钟。

If he switched from gold to let's say iron, he also tried platinum, a number of different foils, he found that they count rate it still was 20 alpha particles per minute.

youdao