sulfur stain 硫化黑变
The EO-1 satellite is seeing the stain of elemental sulfur being carried to the surface, acting like a highlighter pen, pointing to the microbes' location.
EO-1卫星观测到染色的硫元素被带到表面，就像是一只记号笔，指出了微生物的所在地。
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。
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。
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