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DRIVE OF DEEP-WELL SUCKER-ROD PUMP WITHOUT WALKING BEAM
DRIVE OF DEEP-WELL SUCKER-ROD PUMP WITHOUT WALKING BEAM
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机译:深水抽油泵无行走梁的驱动
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摘要
безбалансирньпт drive.russia boom pump with engine, gearbox, reverse device, канатоведущий drum located between the направл ющими устьевым and отт жным rollers.set - in and covered by the rope is wra
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