“低温”的反义词

“低温”的英语可以翻译为：low temperature，microtherm，[化] subzero，[医] hypothermia ...

低温冷藏系统a cryogenic storage system是低温使水变成冰的 吗 ?Is it the low temperature that turns the water to ice?雨水在低温情况下结晶变成雪.Cold rain crystallised into snow....