ISO txhais geometric kam rau ua raws li "Geometrical product specifications (GPS)-Geometrical tolerancing-Tolerancing of form, orientation, location and run-out".Hauv lwm lo lus, "cov yam ntxwv geometrical" yog hais txog cov duab, qhov loj me, kev sib raug zoo, thiab lwm yam ntawm obj ...
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