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stratify v 使成层，使分层

释义2： stratify
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◙ (-ies, -ied)
1. [with obj.] [usu. as adj. stratified] form or arrange into strata
• 使成层，使分层；分层排列
»socially stratified cities.
  分成不同社会阶层的城市。
»[no obj.] the residues have begun to stratify.
  残余物开始分层。
  arrange or classify
• 排列；分类，归类
»stratifying patients into well-defined risk groups.
  把病人按定义明确的危险程度进行分类。
  place (seeds) close together in layers in moist sand or peat to preserve them or to help them germinate
• 沙藏（把种子分层紧密地放在湿沙或泥炭中保存）；分层放（种子）于湿沙（或泥炭）中以助其发芽
  [no obj.] (of seeds) be germinated by this method
• （种子）分层放于湿沙（或泥炭）中以助其发芽

【派生】

♦ stratification noun

【语源】

1. mid 17th cent.: from French stratifier, based on Latin stratum (see stratum )

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