Blue ice is the result of compressed snow and a lack of air bubbles.

蓝冰是由于被压缩后的雪以及缺少气泡产生的结果。

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Cool colors include: violet, blue and green because of our association with snow and ice.

冷色：包括紫色、蓝色和绿色人们通常会联想起冰雪。

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The sun's rays are now absorbed by dark-blue sea rather than bounced back into space by reflective ice and snow.

现在，太阳光线被深蓝色的海洋吸收，而不是被具有反射性的冰和雪反射回太空。

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They could see the snow-covered mountains and huge amounts of blue ice.

VOA: special.2009.12.23

It takes seven or eight hours and strong legs to hike the whole crossing, past ice-blue crater lakes, over snow-covered ridges and through windswept mountain deserts, where totara trees cling to the soft black volcanic sand.

BBC: A return to Middle-earth