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许多野外队由于没有专用机床,加工锥形丝扣比较困难.为此向大家推荐一种专用装置(见附图),靠它的作用,可在普通车床上切削出合乎要求的锥形螺纹.
Many field teams have found it more difficult to machine tapered cones because they do not have a dedicated machine and recommend a special device for this purpose (see attached), by which they can cut the desired conical thread on a regular lathe.