铜球，读音（tóngqíu），原指球型金属铜，引申为“同求”，即为同楼主、楼上的一样求文、资源、攻略等，属于回帖用语。
整个铜球可以绕一根金属轴转动，转动一周代表一个昼夜。
The sphere is mounted by its poles (corresponding to the celestial poles) on a metal axis, and can rotate around it.
一圆环上的球是很重的黄铜球，另一圆环上的则是轻的塑胶球。
The balls on one hoop are heavy brass, those on the other are lightweight plastic.
基元铁工厂制造铜球铜球阀，球阀，铜球，铜球阀，球阀，不。
We specialize in making a wide range of ball valves, brass ball, brass ball valve, ball valves accessories, ball valves manufacturers.
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