中国大学MOOC: The project of railway switch snow protection system based on the principle of the air umbrella, was the second prize winner of the:
举一反三
- The project of railway switch snow protection system based on the principle of the air umbrella, was the second prize winner of the: A: the First China-US Young Maker Competition B: the 10th National Competition of Transport Science and Technology for Students C: the 10th National University Student Social Practice and Science Contest on Energy Saving & Emission Reduction D: the 6th National Mechanical Innovation Design Competition
- The project of railway switch snow protection system based on the principle of the air umbrella, was the second prize winner of the: A: the First China-US Young Maker Competition B: the 10th National Competition of Transport Science and Technology for Students C: the 10th National University Student Social Practice and Science Contest on Energy Saving & Emission Reduction D: the 6th National Mechanical Innovation Design Competition
- The project of railway switch snow protection system based on the principle of the air umbrella, was the second prize winner of the: A: the First China-US Young Maker Competition B: the 10th National Competition of Transport Science and Technology for Students C: the 10th National University Student Social Practice and Science Contest on Energy Saving & Emission Reduction D: the 6th National Mechanical Innovation Design Competition
- The project of railway switch snow protection system based on the principle of the air umbrella, was the second prize winner of the: A: the First China-US Young Maker Competition B: the 10th National Competition of Transport Science and Technology for Students C: the 10th National University Student Social Practice and Science Contest on Energy Saving & Emission Reduction D: the 6th National Mechanical Innovation Design Competition
- 中国大学MOOC: The ______ needs of all animals are food, water, air and protection from their enemies.