... magnetic elling board 磁性拼读板 magnetic field board磁场板 magnetic spelling board 磁性拼读板 ...
双语例句
1
The step board consists of magnet which can produce magneticfield during swinging and vibrating.
踏板具有磁石，摆动时产生磁场能促进气血循环，保持健康。
2
The utility model provides a constant magneticfield spoon shape bone-setting board used for the internal fixation of fracture of the area of the metaphysis of four limbs.