英语词汇“lambda point”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

C1. attributive. Physics. Designating the temperature (approx. 2·17°K) below which liquid helium becomes a superfluid; (also) designating an equivalent temperature for other substances, at which the specific heat increases at an increasing rate as the temperature is approached from below and then drops abruptly when it is reached. Chiefly in lambda point. Also: of or relating to this temperature. Frequently written λ.The curve of specific heat against temperature for helium or another substance somewhat resembles the Greek letter λ at this temperature.

ΚΠ

1932 W. H. & A. P. Keesom in Proc. Sect. Sci. Kon. Akad. Wetensch. Amsterdam 35 742 The specific heat of liquid helium at about 2·19°K falls from a value of 3·0 to a value of about 1·1 certainly within 0·02 degree... For convenience sake it is desirable to introduce a name for the point at which this jump occurs. According to a suggestion made by Prof. Ehrenfest we propose to call that point, considering the resemblance of the specific heat curve with the Greek letter λ, the lambda-point.

1940 Physical Rev. 57 417 Measurements..of the coefficient of thermal expansion of pressed specimens of ammonium chloride in the neighbourhood of the λ-point transition at 242·8°K are reported.

1952 J. F. Allen in F. E. Simon et al. Low Temperature Physics iii. 73 The phase diagram of liquid helium..is crossed by a line which has been called the λ-line.

1958 E. U. Condon & H. Odishaw Handbk. Physics v. xi. 159/2 The λ transition involves no detectable change in spatial structure.

1966 K. Mendelssohn Quest for Absolute Zero x. 234 The characteristic feature of superflow..was transport completely free of friction, taking place at a ‘critical velocity’ which only depended on temperature and vanished at the lambda-point.

2007 T. Heinzel Mesoscopic Electronics in Solid State Nanostructures iv. 119 He II tends to creep over any wall of reasonable height, as long as its temperature stays below the λ point.

单词	lambda point
释义	> as lemmas lambda point C1. attributive. Physics. Designating the temperature (approx. 2·17°K) below which liquid helium becomes a superfluid; (also) designating an equivalent temperature for other substances, at which the specific heat increases at an increasing rate as the temperature is approached from below and then drops abruptly when it is reached. Chiefly in lambda point. Also: of or relating to this temperature. Frequently written λ.The curve of specific heat against temperature for helium or another substance somewhat resembles the Greek letter λ at this temperature. ΚΠ 1932 W. H. & A. P. Keesom in Proc. Sect. Sci. Kon. Akad. Wetensch. Amsterdam 35 742 The specific heat of liquid helium at about 2·19°K falls from a value of 3·0 to a value of about 1·1 certainly within 0·02 degree... For convenience sake it is desirable to introduce a name for the point at which this jump occurs. According to a suggestion made by Prof. Ehrenfest we propose to call that point, considering the resemblance of the specific heat curve with the Greek letter λ, the lambda-point. 1940 Physical Rev. 57 417 Measurements..of the coefficient of thermal expansion of pressed specimens of ammonium chloride in the neighbourhood of the λ-point transition at 242·8°K are reported. 1952 J. F. Allen in F. E. Simon et al. Low Temperature Physics iii. 73 The phase diagram of liquid helium..is crossed by a line which has been called the λ-line. 1958 E. U. Condon & H. Odishaw Handbk. Physics v. xi. 159/2 The λ transition involves no detectable change in spatial structure. 1966 K. Mendelssohn Quest for Absolute Zero x. 234 The characteristic feature of superflow..was transport completely free of friction, taking place at a ‘critical velocity’ which only depended on temperature and vanished at the lambda-point. 2007 T. Heinzel Mesoscopic Electronics in Solid State Nanostructures iv. 119 He II tends to creep over any wall of reasonable height, as long as its temperature stays below the λ point. extracted from lambdan. < as lemmas
随便看	thallium spectrum thallium-activated thalliumactivated thalliums thallodal thallodic thallogen thallogenic thallogenous thalloid thalloidal thallome thallophyte thallophytes thallophytic thallose thallous thallus thalluses thalweg thalwegs thameng thames thames barge thames boat

> as lemmas