the branch of physics that studies the phenomena that occur at very low temperatures
同义词：cryogeny
cryogenics详细解释
cry.o.gen.ics n.(used with a sing. or pl. verb)（名词）（与单数或复数动词连用）The production of low temperatures or the study of low-temperature phenomena.Also called cryogeny 低温学：以低温现象为研究对象的学科也作 cryogeny
