Cov khoom lag luam zoo yog npaj rau kev thauj khoom

Cov khoom lag luam zoo yog npaj rau kev xa khoom tam sim no. Yog tias koj xav tau lawv, thov hu rau kuv.Xim av corundum rau abrasivesFeem ntau siv rau kev sib tsoo hlau thiab cov khoom hlau, tab sis cov khoom lag luam tsis txawv. Peb cov khoom lag luam muaj ntau yam tab sis tsis txwv rau qhov no. Peb yuav kho lawv raws li cov neeg siv khoom xav tau, tsuas yog coj zoo tshaj plaws rau cov neeg siv khoom zoo tshaj plaws rau cov neeg siv khoom. Tej zaum koj tsis meej pem txog cov khoom xaiv, tej zaum koj yog entangled, tej zaum koj tsis paub ntau txog cov khoom. Tab sis tsis txhob txhawj, nws tsis muaj teeb meem. Peb txhua tus txhawb nqa tus kheej kev hloov kho ntawm cov khoom lag luam thiab ntim khoom siv. Txhua yam tsuas yog rau koj qhov kev txaus siab, uas yog peb lub siab tshaj plaws.