octafluorocyclobutane (c4h8)八: eight环: ring; hoop丁烷: butane氟利昂 c318,八氟环丁烷,全氟环丁烷: freon c318全氟环丁烷: freon c318; octafluorocyclobutane; perfluorocyclobutane下载手机词典可随时随地查词查翻译
