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ARRANGEMENT FOR DEEP DRILLING WITH DELIVERY OF LUBRICANT-COOLANT
ARRANGEMENT FOR DEEP DRILLING WITH DELIVERY OF LUBRICANT-COOLANT
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机译:深井钻井与润滑油冷却剂的布置
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摘要
the invention отиоситс to станкостроени field, in particular to the metal, and may be used дл processing holes.purpose изобретени вл етс повьте of axial rigidity by installing стержн with нат ж
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