Roller Skating is not the role of powerful forces in the body, muscle and joint injuries is relatively small.
轮滑运动没有强大的力量作用在身上，对肌肉和关节的伤害比较小。
Crushing roller is a straw chopping stubble-breaking machine critical core component of a joint operation, with simple structure, the advantages of good straw chopping effects.
粉碎辊是秸秆粉碎破茬联合作业机关键核心部件，具有结构简单，秸秆粉碎效果较好等优点。
The joint grouting techniques in roller compaction concrete structure is one of the most important works in dam building technology.
在碾压混凝土结构中进行接缝灌浆，是目前坝工研究的重要技术问题。
The invention relates to a bearing, especially roller joint bearing, comprising outer and inner ring.
本实用新型涉及一种轴承，尤其是涉及一种关节轴承。
The invention relates to a bearing, especially roller joint bearing, comprising outer and inner ring.
本实用新型涉及一种轴承，尤其是涉及一种关节轴承。
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