改进的轮盘回转装置可保证运行中用不撞车。
The improving of roulette with swing device can guarantee never to run in crash.
放在回转装置的单位，并观察有无泄漏，磨，和控制的缺陷。
Place unit on turning gear and observe for leaks, rubs, and control deficiencies.
标配免维护滚盘式回转装置，回转平稳精度高，适应恶劣工作环境。
Standard maintenance-free roll-disc rotary device, turning a smooth, high precision, to adapt to harsh working environment.
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