translation.en: Ten times a day, they extract the 10-foot long cylinder of compressed ice crystals that contain the unsullied air and trace chemicals laid down by snow, season after season for thousands of years.
translation.zh: 每天十次，他们提取 十英尺长的压缩冰晶柱 其中包含了 在经过了上千年的历史更迭之后雪层下 未经污染的气体和轨迹化学物。