1. 形容詞
   無鉛的
   

   同義字詞
   chief,commanding,first,foremost,head,high,leading,preeminent,premier,presiding,primary,prime,principal,supreme,top
   

例句

1. New leadless Pacemaker
2. they are implanting the new leadless pacemakers now.
3. The ceramic leadless QUIP is not designed for surface-mount use, and requires a socket.
4. Lead may be introduced into glass either as an ingredient of the primary melt or added to preformed leadless glass or frit.
5. Intel and 3M developed the ceramic leadless quad in-line package (QUIP), introduced in 1979, to boost microprocessor density and economy.
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