octamethylcyclotetrasiloxane八甲基: prestox化: change; turn; transform环: ring; hoop四: four硅氧烷: oxosilane; siloxane下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:八甲基化环四硅氧烷,即可在微信中查询翻译