日本三级无码啪啪区|午夜视频久久一区久久一|AAAAA一级黄片|日本久久99久久|国际精品AV在线|狠狠2015亚洲一区|美腿丝袜亚洲网站|欧美色多多人人看|国产超碰美女在线|www色色在线色

單詞乎

flash points

flash points是什么意思、flash points怎么讀

flash points漢語翻譯

【醫(yī)】 閃[燃]點

flash points英語解釋

名詞 flash point:

  1. point at which something is ready to blow up
    同義詞：flash point, flashpoint
  2. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
    同義詞：flash point, flashpoint
0
糾錯