breakback mechanisms
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这种扑车器具有动作灵敏，传动机构易复位，检修方便，安全性能可靠，矿车损坏率低等优点。
The fence has the movement to be keen, the transmission system easy to reposition, the overhaul is convenient, the safety performance is reliable, car damage rate low status merit.
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模块上移
模块下移
不移动