pin hole can 盖上有排气孔的罐
A demanding hole which can be made even more difficult by a tough pin placement. Beware of the out-of bounds on the right flank.
富有挑战性的球洞，如果果岭球洞位置刁钻的话，难度会更高。提防把球打出右方界外。
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。
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。
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