Researchers have gone to the boys' village to collect soil and air samples.

研究人员还采集了其居住环境周边土壤及空气样本。

And so, I walked the group over to this object that emits vapor from those air samples.

因此，我带领小组走向这个从空气样本中散发出蒸汽的物体。

And in the southeastern Amazon, her air samples showed that the forest is now releasing—not absorbing—carbon dioxide.

在亚马逊东南部，她的空气样本显示森林现在正在释放而不是吸收二氧化碳。

Usually the pilots she hires fly solo to collect the air samples she needs for her studies of carbon uptake.

通常，她雇用的飞行员会单独飞行来收集她研究碳吸收所需的空气样本。

At a few different stations around the globe, they collect air samples in flasks and compare them to standardized reference samples.

在全球几个不同的站点， 他们将空气样本收集在烧瓶中，并将它们与标准化参考样本进行比较。