first cutfirst fractionoverhead distillateoverhead fraction初: at the beginning of; in the ...馏份: fraction; cutter stock; cut; ...脱除粗苯初馏份蒸柱: defronting column初馏: foreruning; primary distillation馏份: [石油工业] fraction; cutter stock; cut; cut fraction 轻馏份 light fraction; 重馏份 heavy fraction; 馏份收集器 fraction collector; 馏份组成 [化学] fractional composition下载手机词典可随时随地查词查翻译
