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One of these is the large underground xenon ( lux ) experiment .

这些实验其中之一即为大型地下氙实验（lux）。

First , a range of less-dangerous gases are liberated , including tritium , krypton and xenon .

首先会释放一系列危险性较低的气体，如氚、氪和氙。

The xenon atoms lost a whopping 21 electrons at once , which indicates that it was hit by 50 photons simultaneously .

氙原子一次失去了高达21个电子，这表明它同时被50光子击中。

Accelerating 60 mile per hour consumes a mere 37 ounces of the xenon propellant on board , and that propellant has to last .

每小时60英里的加速只消耗船上氙推进剂37盎司，推进剂还得继续坚持。

In particular , the researchers were studying the isotope ratios -- or the comparative abundances of the different forms of a particular element -- of the gaseous elements krypton and xenon .

特别一提，研究人员对其同位素含量进行了分析：即特殊元素的不同形式氪和氙在气体中所含的相对丰度。