For the available photosynthetic active radiation (PhAR), energy conversion efficiency (ECE) of the communities was 2.35% in the farming subsystem, 0.97% in the mowing subsystem, and 0.46% in the grazing subsystem.是什么意思_For the available photosynthetic active radiation (PhAR), energy conversion efficiency (ECE) of the communities was 2.35% in the farming subsystem, 0.97% in the mowing subsystem, and 0.46% in the grazing subsystem.在线翻译_英语_读音_用法_例句