单词 | threshold value |
释义 | > as lemmasthreshold value b. In sense 4, esp. designating a value, amount, etc., that is equal to a particular threshold or limit, as in threshold concentration, threshold price, threshold value, etc. ΘΚΠ the world > relative properties > quantity > greatness of quantity, amount, or degree > high or intense degree > [adjective] > limit or threshold critical1808 threshold1906 1906 J. R. Murlin tr. R. Tigerstedt Text-bk. Human Physiol. xvi. 455 In order that an external stimulus may produce a sensation, it must exceed a certain lower limit of strength, which is called, after Herbart, the threshold value of the stimulus. 1921 J. Mills Within Atom 215 Threshold frequency, the minimum frequency of radiation which will produce photo-electric effects. 1941 in M. Gowing Brit. & Atomic Energy 1939–45 (1964) 400 Neutrons of less than a certain threshold energy..do not cause fission of 238U. 1964 W. G. Smith Allergy & Tissue Metabolism ii. 23 The tissue response would depend upon the number of susceptible cells..reached by a threshold concentration of histamine. 2007 European Jrnl. Health Econ. 8 333 This price is called the break-even price or threshold price for the new drug. < as lemmas |
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