ratardation

基本解释

• 缓凝

同根派生

• ratardation相关词

英汉例句

• The developmental ratardation of brain in rats induced by prentalexposure to HTO had observed by measuring the contents of cerebral amino acids.
  以脑组织中游离氨基酸含量为指标,观察出生前因氚水照射引起的大鼠脑发育障碍。
• Mental ratardation children
  精神发育迟滞儿童
• material ratardation
  实质性阻碍

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