Page 1


1


—— 2


1 2

3


80 9.6-2


1. “ 2.


1 2 3 4 A. B. C. D. 5

( A. B. C. D.

)


16.2 探究电动机的转动原理  

1 —— 2 3 1 2 809.6-2 2. 1.“”

Read more
Read more
Similar to
Popular now
Just for you