短語詞組短語secondary timber production forest 低産用材林secondary y production 第二級生産;次級生産secondary energy production 二次能源生産secondary oil production 機械採油secondary metabolize production 次生代謝物secondary metabolite production 次級代謝産物Secondary Production Processes 精加工工藝Primary And Secondary Production 初級與二級産品secondary production of rangeland 草地次級生産 返回 secondary production