单词	rescue train
释义	rescue train 救援列车
随便看	commutator insulation commutator insulator commutator length commutator lengths commutatorless commutatorless D.C.motor commutatorless excitation commutatorless generator commutatorless machine commutatorless motor commutatorless, motor commutatorless varying-speed motor commutator loss commutator losses commutator lug commutator machine commutator machine having adjustable armature commutator machine having air-core armature commutator machine having damping winding commutator machine having open armature winding commutator machine having parallel winding commutator machine having stationary shunts commutator machine with brake commutator matrix commutator, mechanical