As the main conjunctive mode of the steel structure, high-strengthened hexangular bolt jointauxiliary has got widely used in production.
高强度大六角螺栓连接副作为钢结构的主要连接方式，在生产中得到了广泛的应用。
2
The discussion for operating conditions of hub bearings, auxiliary bearings of electronic instrument assembly and constant velocity joint bearing has been made.
对轮毂轴承、电器部件辅助轴承和等速万向节轴承的工作状况进行了讨论。
3
Raw and processed materials, auxiliary materials, components, spare parts and packaging materials imported from abroad by the joint venture for use in the production of goods for export.