短語詞組短語main shaft structure 主軸結(jié)構(gòu)main loading structure 主要承重結(jié)構(gòu)investment main body structure 投資主體結(jié)構(gòu)Main product structure 主產(chǎn)品結(jié)構(gòu)main roof structure 老頂結(jié)構(gòu)three main truss structure 三主桁結(jié)構(gòu)parallel main memory structure 并行主存結(jié)構(gòu)main lifting structure 主起升機(jī)構(gòu)main -structure 主結(jié)構(gòu) 返回 main structure