热热热久久久免费视频|第四色五月婷婷五月天AV|日韩高清无码免费一级大片|日本成人手机在线视频|中文字幕无码Av在线|台湾a级别黄片免费看|欧美一级性爱亚洲第一性爱|A级黄色电影久草大|www.91精品视频|亚洲AV资源欧洲无码在线观

單詞乎

silicones

silicones是什么意思、silicones怎么讀

silicones漢語翻譯

【化】 有機硅氧聚合物

silicones英語解釋

名詞 silicone:

  1. any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation
    同義詞：silicone, silicone polymer
0
糾錯