intermediate decay product造句

例句与造句

1. Thus neptunium is present in nature in negligible amounts produced as intermediate decay products of other isotopes.
2. The only naturally occurring isotopes are 231 Pa, which occurs as an intermediate decay product of 238 U . 231 Pa makes up nearly all natural protactinium.
3. It's difficult to find intermediate decay product in a sentence. 用intermediate decay product造句挺难的