Based on the conditions of processing facilities in enterprises, the thesis develops the compound dies of cutting edge and punching round holes of the tractor frame.

针对企业加工设备条件的限制研制了拖拉机机架切边冲孔复合模具。

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Based on the conditions of processing facilities in enterprise, the compound dies of cutting edge and punching round holes for the tractor frame is developed.

根据企业加工设备条件，研制了拖拉机车架切边冲孔复合模具。

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His high-school coach, Larry Turner, said that in addition to long-tossing more than 300 feet, Bundy used to build arm strength by digging and refilling post-holes and flipping over tractor tires.

WSJ: Dylan Bundy, Trevor Bauer, Matt Barnes: Throwing Long to Throw Short