音标:[pai'ri:θrɔid] ;
n. [化]拟除虫菊酯,合成除虫菊酯
词型变化:名词复数形式 : pyrethroids

pyrethroid的用法和样例:

例句

用作名词(n.)
  1. Methods The larvae dipping method was used to test the resistance to pyrethroid.方法采用幼虫浸渍法,测定其对拟除虫菊酯类杀虫剂的抗性倍数。

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