free out (FO)
无税品
free goods【税收】;non-dutiable goods【税收】
暂无补充释义。
相关词条
free clinic
pulse-free chromatographic pump
Serum-free and Specialty Media and Reagent
context-free phrase structure rule【计】
by-pass check valve (free-wheeled check valve)
free-central placentation
six bowels fulfill their purposes when there is free flow