手术之前，患者会吸入这些混合着氧气或一氧化二氮的麻醉气体。
Before a procedure, patients inhale these gasses, which are mixed with either oxygen or nitrous oxide.
目的探讨氧化亚氮结合利多卡因浸润麻醉应用于无痛人流的临床效果。
Objective To explore the clinical effects of combination of infiltration anaesthesia with lidocaine and laughing gas for the painless induced abortion.
贝多斯被玻璃划破的手指感到疼痛，原来氧化亚氮不仅使他俩狂笑，而且使贝多斯麻醉不知手痛。
Tony Adams has been more than cut through the glass finger pain that Kuang Xiao nitrous oxide not only they but also the multi-Tony Adams hand I do not know of narcotic pain.
一项研究表明，以牙科麻醉剂“笑气”之名著称的氧化亚氮，已取代氟氯烃，成为上层大气中的臭氧最强有力的破坏物。
Nitrous oxide, better known as the dental anaesthetic "laughing gas", has replaced CFCs as the most potent destroyer of ozone in the upper atmosphere, a study has shown.
目的：探讨氧化亚氮（N_2O）吸入麻醉下行无痛人工流产的有效性与安全性。
Objective: To investigate the analgesic effect and the safety of N2O inhaled in induced abortion.
气体麻醉剂一种气态的麻醉剂，如一氧化二氮。
目的研究氧化亚氮吸入与异丙酚静脉超浅麻醉在拔牙中的效果。
Objective to study the effect of N2O inhalation and propofol intravenous anaesthesia in tooth extraction.
分娩镇痛逐渐被人们所认识，其中吸入麻醉镇痛又以氧化亚氮应用较早、广泛。
Analgesia in labor is gradually recognized by more and more people, of which nitrous oxide inhalation analgesia in labor is used earlier and more broadly.
分娩镇痛逐渐被人们所认识，其中吸入麻醉镇痛又以氧化亚氮应用较早、广泛。
Analgesia in labor is gradually recognized by more and more people, of which nitrous oxide inhalation analgesia in labor is used earlier and more broadly.
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