经检查符合要求后将螺栓拧紧。
After is has been confirmed to meet the requirements, screw down the bolts.
螺栓拧紧质量均匀，是铁路线路施工和维修的好帮手。
Uniform bolt tightening. It is helpful to railway construction and maintenance.
每年检查并拧紧所有螺钉、螺栓和各种固定装置。
Annual check and tighten all the screws, bolts and fixing device.
使用前一定要确保所有的螺母和螺栓都拧紧。
使用前一定要确保所有的螺母和螺栓都拧紧。
应用推荐