短語詞組短語photosynthesis transpiration rate 光合蒸騰速率high photosynthesis speed rate 高光合速率gross true photosynthesis rate 真光合強度photosynthesis rate measuring 光合速率測量photosynthesis rate model 光合速率模型net photosynthesis rate npn 凈光合速率photosynthesis rate decreased 光合速率降低canopy photosynthesis rate cpr 群體光合速率maintaining photosynthesis rate 維持光合作用 返回 photosynthesis rate