Litter (Trash) 5 Rice 5 Machinery 4 Bibliography 3 Case studies 3 Environmental aspects 3 Grain 3 更多 ... Losses 3 Nuclear energy 3 Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 3 Space sciences 3 Threshing 3 Threshing machines 3 Aerospace Technology and Astronautics 2 Aerospace engineering 2 Astronautics 2 Atoms 2 Atoms and Molecules in Strong Fields, Laser Matter Interaction 2 Biomedicine, general 2 Conservation 2 Control engineering 2 Data Mining and Knowledge Discovery 2 Data mining 2 Economic aspects 2 Harvesting 2 History 2 Machinery and Machine Elements 2 Malaysia 2 Management 2 Mechanical Engineering 2 少 ...