etoc

常見例句

• A determination rnethod of Etoc in Mosquitourepellent mat with gas chrornatography was established.The quantitative analysis of etoc was conducted by GC using FID and internal standard method.
  敘述了採用氣相色譜法，以FID檢測(cè)器和內(nèi)標(biāo)法定量測(cè)定電熱蚊香片中益多尅的含量。
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