效用: effectiveness; efficacy; eff ...论: The Analects of Confucius边际效用论: marginal utility theory; theory of marginal utility基数效用论: theory of cardinal utility序数效用论: theory of ordinal utility价值的效用论: utility theory of value效用: effectiveness; efficacy; efficiency; utility; usefulness; avail 边际效用 [经济] marginal utility 节用论: theory of economizing信用论: credit theory语用论: pragmatics读书无用论: the idea of the uselessness of study交互作用论: interactionism精神作用论: theory of mantel action科学无用论: antiscience毛细作用论: capillary theory生产费用论: costs of production theory反效用: disutility; negative utility负效用: disutility; negative utility功用,效用: the quality or condition of being useful; usefulness净效用: net utility利用,效用: utilization效用,效果: effectiveness效用,有用: utility noun效用感: sense of efficacy效用机: utility aircraft