... dental syringe needle 牙科注射针 dental syringe 牙科注射器 dental unit 牙科治疗机 ...
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dental syringe needle 牙科注射针
metallic dental syringe 牙科金属注射器
dental metallic syringe 牙科金属注射器
dental l syringe 牙科注射器
Dental cartridge syringe 牙科筒式注射器
dental l syringe needle 牙科注射针
dental syringeodontosyrinxtooth syringe 牙科注射器
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The syringe invented by Dr John Meechan, which is among projects recognized with a national award for innovation, will lessen the pain of dental injections by reducing their acidity.
该注射器由Dr John Meechan发明，荣获了国际性发明大奖的公认。该注射器通过减少注射剂酸度，降低了牙科注射带来的疼痛。
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