preconcentration

名词 n.
中文释义

英文释义

名词 n.
  1. The concentration of a trace material prior to an analysis

词形变化

preconcentrations plural

词源

Etymology tree
Proto-Indo-European *per-
Proto-Indo-European *preh₂-
Proto-Indo-European *-i
Proto-Indo-European *préh₂i?
Proto-Italic *prai
Proto-Italic *prai-
Latin prae-lbor.
Middle English pre-
English pre-
English concentration
English preconcentration
From pre- + concentration.
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