短語詞組短語secondary timber production forest 低產(chǎn)用材林secondary y production 第二級(jí)生產(chǎn);次級(jí)生產(chǎn)secondary energy production 二次能源生產(chǎn)secondary oil production 機(jī)械采油secondary metabolize production 次生代謝物secondary metabolite production 次級(jí)代謝產(chǎn)物Secondary Production Processes 精加工工藝Primary And Secondary Production 初級(jí)與二級(jí)產(chǎn)品secondary production of rangeland 草地次級(jí)生產(chǎn) 返回 secondary production