十环烯 decacyclene

十环过山车 Tenth ring roller coasters ; Ten Ring roller coaster

六溴环十二烷 HBCD ; hexabromocyclododecane ; HBCDD

中美能源环境十年合作框架 The U.S.-China 10 Year Energy and Environment Cooperation Framework

中美能源和环境十年合作框架 the 10-Year Cooperation Framework of Energy and Environment

环十二酮 CDON ; Cyclododecanone

环十二碳三烯 [有化] cyclododecatriene ; CDDT

环十五烷酮 exaltone ; Cyclopentadecanone ; normuscone

十字形环 [遗] cruciform loop