| 释义 |
lambda point
lambda pointn. The temperature at which the transition from helium I to superfluid helium II occurs, approximately 2.2°K.lambda point
lambda point[′lam·də ‚pȯint] (cryogenics) The temperature (2.1780 K), at atmospheric pressure, at which the transformation between the liquids helium I and helium II takes place; a special case of the thermodynamics definition. (thermodynamics) A temperature at which the specific heat of a substance has a sharply peaked maximum, observed in many second-order transitions. |