1. Yuav ua li cas los daws qhov "engraving tsis meej"?

Yog vim li cas 1: Kev kho kom pom tseeb tsis raug.

Kev daws: Rov kho qhov ua kom pom tseeb, ua kom pom tseeb ntawm qhov tsawg kawg nkaus rau qhov zoo tshaj plaws.

Yog vim li cas 2: Lub backlash tsis kho.

Kev daws: Siv rau software kev khiav hauj lwm phau ntawv "backlash adjustment" los kho.

Yog vim li cas 3: Cov qauv tso zis daws teeb meem tsawg dhau.

Kev daws: Kho qhov kev daws teeb meem.

Yog vim li cas 4: Cov ntawv nyeem thiab cov duab tsis raug.

Kev daws: Kho qhov kev kho mob.

Yog vim li cas 5: Cov kauj ruam engraving tsis raug.

Kev daws: Kho.