sub-pppb

英['sʌbp'iːp'iːp'iːb'iː] 美['sʌbp'iːp'iːp'iːb'iː]
  • n.亚毫微量adj.低于10-9的;十亿分之一以下的
  • period n.一段时间；周期；时期；课时；学时；句号；月经
  • subsequent adj.随后的；后来的

相关词汇

subsere sub subependymal giant-cell astrocytaoma sub-area coneentralized power supply Subcutaneous tissue of parietal region subluxation of temporomandibular joint Subsidies to one's retirement benefits Subcutaneous tissue of glans clitoridis Subcutaneous tissue of female genitalia submersible non-clog centrifugal pump subgrid scale pollution formation model subacute nodular migratory panniculitis
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