Assertion: liquid nitrogen's temperature | /r/HasProperty | held constant
Facets:
value: by slow boiling of the liquid
type: CAUSE
value: at 77 k
type: TEMPORAL
Source sentences:
text: It can be stored and transported in vacuum flasks, the temperature being held constant at 77 K by slow boiling of the liquid.
text: Here, the very low temperature is held constant at 77 K by slow boiling of the liquid, resulting in the evolution of nitrogen gas.