中华汉语词典 > 英语单词 > retardation是什么意思

retardation

英[ˌri:tɑ:\'deɪʃn]
美[ˌritɑrˈdeʃən]

基本释义

  • n.延迟; 留级; 制动; 光程差

词性变化

实用例句

Asbestos reinforcement confers excellent flame retardation properties on a composite.

石棉增强材料使复合材料具有优异的防火性能.

辞典例句

The theory confirms the increase in the retardation effect with decrease in particle size.

理论证实,随着颗粒尺寸的减小,这一减速效应将增大.

辞典例句

It is therefore not surprising that self - retardation is not well - documented in the systems we are considering.

因此,在我们所考虑的体系中,自缓聚作用尚未完全证实是不足为奇的.

辞典例句

Most children with Down syndrome have mild - to - moderate mental retardation.

大多数唐氏综合症儿童有轻度到中度的弱智.

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The suggestion of development and extent of fire retardation PP was made.

提出了发展和推广阻燃聚丙烯纤维的有关建议.

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Down syndrome is the most common genetic cause of mental retardation.

唐氏综合症是最常见的精神迟钝的遗传病因.

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Autistic intelligence varies widely, from severe retardation to savant syndrome.

自闭症患者的智力差异甚广, 从极度迟钝到学者症候群不等.

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Retardation factor ( new post )

迟延因素 ( 新员额 )

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In addition, 4 patients presented with growth retardation.

此外, 4例患者表现出生长落后.

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Survey On Physical Function Developmental Level Of Students With Mental Retardation In beijing.

北京市智力落后学生身体机能发育水平的调查研究.

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Psychology The state or condition of being an imbecile; moderate or severe mental retardation.

低能、弱智的状态或情况; 中度或严重智力障碍.

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Objective To explore the etiology of mental retardation, amenorrhea , abnormal childbearing history and abnormal sexual appearance.

目的为探讨智力低下 、 闭经 、 不良生育史和性征异常的病因.

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Objective: To investgate the possibility of reactivating fragile X mental retardation - 1 gene ( FMR 1 ) by cyclic adenosine monophosphate ( cAMP ).

目的探讨环磷酸腺苷 ( cAMP ) 对脆性X智力低下一号封闭基因 ( FMR1 ) 再激活作用的可能性.

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Down Syndrome syndrome is the most common genetic cause of metal retardation mental retardation.

唐氏综合症是最为常见的基因遗传的智力迟钝.

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Running safely of mine hoist mainly depends on running parameter control in retardation period.

矿井提升机的安全运行主要取决于减速段运行参数的控制.

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英英释义

Noun
  • 1. a decrease in speed;

    "the deceleration of the arms race"

  • 2. the extent to which something is delayed or held back

  • 3. any agent that retards or delays or hinders;

    "flame-retardant"

  • 4. lack of normal development of intellectual capacities

  • 5. the act of slowing down or falling behind

反义词

n.妨碍;阻止;减速度

acceleration

其他释义

acceleration

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