每一次萃取后，我们把得到的气体纯化，再将氙通入霍恩·柏格的质谱仪，测量出其中所含各种同位素的原子数量。
After each extraction, we purified the resulting gas and passed the xenon into hohenberg 's mass spectrometer, which indicated the number of atoms of each isotope present.
在各种钨同位素原子里有74质子，但有着不同的中子数。钨- 182有108个中子，而钨- 184有110个中子。
Isotopes of tungsten each have 74 protons in their atoms but different Numbers of neutrons - tungsten-182 has 108 neutrons, while tungsten-184 has 110.
人们发现，自然界里许多元素，都是各种不同的同位素的混合物。
Many elements in nature are found to be mixtures of different isotopes.
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