... Pushing,charging ortrap#ng推,撞,拉(对方) pushing and pulling forces推挽力 pushing and pulling screw jack螺旋推拉起重器 ...
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... traction shovel 牵引式挖土机,牵引铲... traction thrust 推挽力 electric traction 电力牵引 ...
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推挽力 pushing and pulling forces; traction thrust; tractor thrust 推挽式 push pull; push-pull mode; push-pull type ..
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磁力推挽式放大器 magneticpush-pull amplifier ; magnetic push-pull amplifier
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