double-grating

英['dʌblɡr'eɪtɪŋ] 美['dʌblɡr'eɪtɪŋ]
  • 双光栅
  • double adj.双重的;成双的;两倍的v.翻一番;使...加倍n.两倍;双份
  • switching n.转换;开关动词switch的现在分词形式.