为发挥活塞杆与十字头间螺纹连接的优势,克服大直径活塞杆螺纹连接易松动的致命缺点,研发出一种可靠的大直径螺纹连接防松结构.%In order to exploit the advantages of screw connecting between piston rod and crosshead, to overcome the fatal loose weak-ness of the large diameter piston rod screw connection, a kind of reliable large diameter screw connection anti-loose structure has been researched and developed.
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