ball coupling meaning in English

球接
球状结合
球状连接器

Ball coupling for cycle and motorcycle trailers
自行车和摩托车挂车球形连接装置
Ball couplings for caravans and light trailers
旅游拖车和轻型拖车的球形连接器
The development and application of moment limiting steel ball coupling and the characteristics of using it in glass mechanism
限矩型钢球联轴器在玻璃机械上的应用及使用特点
The steel - ball coupling is a kind of new and highly - efficient drive part . this paper analyzes the mechanism of the rolling - ball coupling being destroyed and calculates its load capability by using the finite element method , which is quite advanced
滚珠联轴器是一种新型高效的联轴器，本文应用有限元分析的方法对滚珠联轴器的失效机理和承载能力进行了分析和计算，是比较先进的。