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secondaries是什么意思

secondaries

美['sekəndeəriːz]  英['sekəndeəriːz]
sp.  副翼羽,次波,二期梅毒疹

英英释义

名词secondary
  1. the defensive football players who line up behind the linemen
  2. coil such that current is induced in it by passing a current through the primary coil
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