低溫計; 低溫溫度計; 深冷溫度計
Cryometer \Cry*om"e*ter\, n. [Gr. ? cold, frost + -meter.] (Physics) A thermometer for the measurement of low temperatures, esp. such an instrument containing alcohol or some other liquid of a lower freezing point than mercury.
cryometer n : a thermometer designed to measure low temperatures