1) reaming with step reamer
阶梯绞孔
2) Inverse Stepped Hole
反阶梯孔
3) reaming with step reamer
阶梯铰孔
4) drilling with step core drill
阶梯扩孔
5) ladder hole
阶梯孔
1.
Introduced design and use of centering spindle using in spindle ladder hole, and according to the problems appeared in machining,present solvement methods, it has a certain reference function to machining similar parts.
介绍了轴类阶梯孔的定心心轴的设计及使用,并根据实际加工中存在的问题,提出了相应的解决办法,对生产实践中加工类似零件有一定的参考价值。
6) The resonator with step-changed mirror and output aperture
阶梯孔耦腔
补充资料：第二孔(继发孔)型缺损
第二孔(继发孔)型缺损
ostium secondary defect
是心房间隔在形成上发生障碍，一般缺损较大，多在卵圆孔附近称第二孔(继发孔)型缺损。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条