Objective Laser abrasion was compared with suction blister method in the treatment of vitiligo of uneven lesions with epidermal grafting.
目的观察激光磨削与负压发疱法治疗不平坦部位白癜风的疗效，以期寻找一种简便有效地处理病变部位表皮的方法。
Laser tools and air abrasion are increasingly replacing drills and other tools, but dentists still use lots of picks.
虽然激光工具和空气喷砂机正在迅速取代钻头和其他工具，但牙医们还是要使用大量的凿子。
It is put out that the injector and extruder are strengthened on the surface by laser surface alloy to improve its high temperature abrasion and lengthen life of the injector.
提出了采用激光表面合金化的方法对注塑机和挤出机螺杆表面进行强化，以提高其抗高温粘着磨损性能，延长注塑机使用寿命。
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