效用的英文：
usefulness
effectiveness

參考例句：
  • A missionary for acupuncture and moxibustion
    針灸效用的鼓吹者
  • Certain plants have medicinal ( ie healing ) properties
    某些植物具有藥物效用
  • Act utilitarianism holds that we must study each action in all of its specific details to determine its utility.
    行為效用主義認(rèn)為,必須研究每個(gè)行為的每一個(gè)特定細(xì)節(jié)以決定它的效用大小。
  • The total time spent performing all the specific operations that follow.
    執(zhí)行下面的特殊作業(yè)總計(jì)時(shí)間會(huì)失去效用。
  • On the supply side, individuals are assumed to operate on the principle of utility maximization.
    從供給方面來看，假定個(gè)人行為是遵循效用最大化原則。
  • On the supply side, individuals are assumed to operate on the principle of utility maximization
    從供給方面來看，假定個(gè)人行為是遵循效用最大化原則。
  • It is likely to have a soothing effect on him.
    這樣很可能對(duì)他產(chǎn)生一種鎮(zhèn)定的效用。
  • It would not have occurred to her that an action which is ineffectual thereby becomes meaningless.
    她從來沒有想到過，沒有效用的事就沒有意義。
  • It is proved By medical science that codliver oil has the efficiency of calming the mind and promoting mentality.
    醫(yī)學(xué)證明，魚肝油有寧神益智效用。
  • Both an ascetic monk and a high-living playboy may assign 1000 units to a steak and 100 units to a potato
    一個(gè)苦行僧和一個(gè)花花公子對(duì)牛排的偏好可能都是1000效用單位，對(duì)土豆的偏好都是100效用單位。
usefulness是什么意思：
n. 有用
  • It is used as a reflexive.
    它被作為反身代詞使用。
  • That was a balk to us.
    那對(duì)我們是個(gè)挫折。
  • They help us to be maximal encouraging to us.
    他們來幫助我們對(duì)我們是個(gè)極大的鼓舞。
  • Already used and therefore unavailable for further use.Used of taxonomic names.
    已占用的已經(jīng)使用因而不能再作他用的。用于分類學(xué)名稱
  • Why use wood when you can use plastic?
    既然能用塑料，何必非用木料？
effectiveness是什么意思：
n. 有效，效力

  • This parameter has no effect.
    此參數(shù)不起作用。
  • The drug was of no effect.
    這藥無效。
  • The helpful effect on propellant slosh effects was a secondary consideration
    推進(jìn)劑晃動(dòng)的有利性影響是一個(gè)次要的考慮因素。
  • She only dresses like that for the effect it creates/for effect.
    她僅僅為了裝樣子才那樣打扮.
  • The medicine was an effective purge.
    這是療效很好的瀉藥。

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