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关注：1
2013-05-23 12:21
求翻译：With an electrical motor a thread-spindle is rotated, on which a screw nut is mounted and moving forward or backward depending on the rotation direction. At the endpoints a blockage is avoided by driving the nut-case to a spring-package. A pull-push-pipe in constantly connected with the nut case nad the nut itself, hen是什么意思？ 待解决
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With an electrical motor a thread-spindle is rotated, on which a screw nut is mounted and moving forward or backward depending on the rotation direction. At the endpoints a blockage is avoided by driving the nut-case to a spring-package. A pull-push-pipe in constantly connected with the nut case nad the nut itself, hen
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