cryogenicsWiktionary 原文构词拆分cryogen词根/词干+-ics后缀Forms nouns referring to fields of knowledge or practice. · Forms nouns referring to activities.词源说明From cryogen + -ics.释义（英文）名词 NounThe science and technology of the production of very low temperatures.The scientific study of low-temperature phenomena.词族派生词（2）cryogeniccryogen相关词（3）cryo--genic-ics