短語詞組短語nanometer grain microcosmic structure 納米晶粒微觀結(jié)構(gòu)grain industrial structure 糧食產(chǎn)業(yè)結(jié)構(gòu)grain product structure 糧食生產(chǎn)結(jié)構(gòu)grain production structure 糧食生產(chǎn)結(jié)構(gòu)grain plant structure 糧食種植結(jié)構(gòu)grain grade structure 粒級結(jié)構(gòu)grain boundary structure control 晶界結(jié)構(gòu)控制grain variety structure 糧食品種結(jié)構(gòu)grain spreader structure 晶粒結(jié)構(gòu) 返回 grain structure