Thus it is doubted as the snow unmelted through winter.

人们怀疑那是未融的积雪停驻在冬天。

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Unmelted gels have the same melting point as the surrounding resin, but remained colder than the average melt temperature.

不熔凝胶与周围树脂有同样的熔点，但是受热温度比平均温度低。

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The results show that the partial unmelted region, casting defect structure and secondary crack form in the welding seam, which result in the low stress breakage of the samples.

结果表明：在焊缝区域内存在着局部未熔区以及铸造疏松组织和二次裂纹等缺陷，这是导致试样低应力断裂的根本原因。

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Some melted at such high temperatures that unmelted pebbles blocked the extruder nozzle.

FORBES: Almost Out of the Woods

The ice that preserved his mummified corpse lay unmelted, 3, 250 metres above sea level, for more than 5, 000 years - since the world was in its warmest phase following the most recent ice age.

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