Paragraph 6 __________ 查看材料A.The main components of
Paragraph 6 __________ 查看材料
A.The main components of the maglev train system
B.High-speed maglev due to zero friction
C.The working principle of the maglev train
D.Differences between polarity and magnetic field
E.Comparison of maglev trains with traditional ones
F.Maglev with a powerful motor