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简述了国内外矿用牙轮钻头的润滑方法，介绍了一种最新研制的矿用牙轮钻头自动注油和稳杆的风水分离器。
A brief introduction of lubrication methods of mining roller cone bit at home and abroad is given. A new type of geomagnetism separator with automatic roller cone oiling and stable rod is introduced.