单词	万能切煤机
释义	万能切煤机universal coal-cutter
随便看	alternation of generations alternation of host alternation of multiplicities law alternation of nuclear phase alternation of nuclear phases alternation of signs alternation of studies alternation of time alternation ranking alternation ranking method alternations alternation specification alternation switch alternation tendency alternation theorem alternative alternative activation pathway alternative activity alternative agriculture alternative air alternative airfield alternative air inlet alternative air--inlet alternative algebra alternative allocation