Polyurethane Hard Foamed Plastic is an ideal kind of organic low temperature heat insulation material.
聚氨酯硬泡是一种理想的有机质低温隔热材料。
But its brittleness at high temperature and hard to machine limited its applications so far.
但是其高温脆性大，加工成型困难，至今得不到工业应用。
It is hard to get the machine running when the temperature is very low.
当气温非常低时，发动机器很困难。
Hard as the metal is, it can be changed into liquid at high temperature.
不管这种金属多硬，在高温下能将其变成液体。
Hard as the metal is, it can be changed into liquid at high temperature.
不管这种金属多硬，在高温下能将其变成液体。
应用推荐