The NC boring machine equipped with this kind of deformable bar can bore special-shaped pin hole in piston efficiently, and meanwhile meet the demand of micro-meter accuracy.
装有这种新型变形镗杆的NC镗床能高效地镗削活塞异形销孔，并达到微米精度的要求。
The NC boring lathe equipped with this kind of deformable arm can bore special shaped pin hole for piston efficiently, and meanwhile meet the demand of micro meter accuracy.
装有这种新型变形镗杆的NC镗床能高效地镗削活塞异形销孔，并达到微米精度的要求。
Research on boring mechanism for piston noncircular pin hole;
简述了采用活塞异形销孔的必要性及其结构特点。
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