例句與造句

1. proof tracking index
   耐漏電起痕指數(shù)
2. method for determining the comparative and the proof tracking indices of solid insulating materials under moist conditions
   在潮濕條件下固體絕緣材料的比較和檢驗跟蹤指數(shù)測定的方法
3. It's difficult to find proof tracking index in a sentence. 用proof tracking index造句挺難的