open coil armature 开圈电枢 ; 开路线圈电枢

open coil armature winding 开圈电枢绕组 ; 开圈式电枢绕组

open coil annealing 松卷退火

open coil annealing furnace 松卷退火炉

open coil spring 开大螺旋弹簧

open-coil winding 开线圈绕组

open coil winding 开圈绕组

open-coil armature-winding 开路线圈电枢绕组

open-coil annealing 松卷退火