The sulfur leaves a pale yellow stain on the ice, and scientists say it's a clear sign of biological activity.
它是地球上人们已知的唯一一个天然温泉中的硫磺沉积于冰面的地方。 硫磺在冰面上形成了一个浅黄色的斑点，科学家说这是生物活动的明显标志。
The film is transparent and colorless, and is excellent in resisting cold, resistance, light, scratch and yellow stain.
成膜透明无色，优秀的耐寒性，极优的耐光性和耐刮性、耐黄变。
The sulfur leaves a pale yellow stain that almost seems to glow in the lower image, a photo taken from a helicopter in July 2006.
硫磺留下的淡黄色痕迹，在2006年直升机拍摄的照片(下图)中更加鲜艳夺目。
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