The chemical milling process forms a tapered portion (18) of the endodontic file (10).
所述化学蚀刻过程形成了牙髓锉(10)的锥形部分(18)。
An aligning jig to be fitted into the locating hole and the tapered portion is prepared.
一个适应于定位孔和变小部分的对准夹具。
The inlet of the grilling pipe is connected to an upper portion of the tapered hole , and the air discharging pipe is connected to a lower end of the tapered hole .
烧烤管的入口连接到锥形孔的上部，并且排气管连接到锥形孔的下端。
The inlet of the grilling pipe is connected to an upper portion of the tapered hole , and the air discharging pipe is connected to a lower end of the tapered hole .
烧烤管的入口连接到锥形孔的上部，并且排气管连接到锥形孔的下端。
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