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。
2
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。
3
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.